Having watched some video of my own dancing, i'm aware that i'm not coming out in promenade (in slow waltz, for example) very well.
Of course i'll be asking our coach next session, but in the meantime, does anyone have any tips?
I don't seem to be getting that smooth lowering action. I seem to suddenly collapse at some point - not a lot, but noticeably. It may be that i'm not thinking "up" with my body as i lower, but i suspect it's more to do with my leg and foot action.
Starting on my toes with both feet very close, i go to the point of imbalance (hey!! i've heard that before!!) and step out left foot on 3 on a toe. As my weight transfers over this, my left heel lowers and i bring the right leg through for step 1 into the next figure (say, a curved 3 step).
Now some questions:
At what stage do i lower onto my right heel? Before my left foot plants on 3, AS my left foot plants, or after, or not at all. My left knee of course softens as the weight transfers onto it (moving into step 1 of the following figure), but at what point exactly does the left heel lower?
Any other ideas as to why i may be collapsing?.
I looked at the 2006 Blackpool clip (which of course is foxtrot) and the only promenade exit i can find is one by Hawkins. He doesn't lower his right heel at all. But i did notice that Justina apparently does lower.
The clips on this site sadly don't show a promenade exit.
In my case, the preceding figure is a telemark (and that's another story...

Would recommend you try "stretching" into the movement: Dance your body throught your left foot while leaving your right toe where it was on the floor. Feel a momentary stretch through your body away from your stationary right foot, almost like some kind of yoga pose. Then, as your body keeps moving across the left foot, feel like you are taking your right knee across your body to your left shoulder. The idea is that you want your right foot to come through, but you don't want your right hip to come through - the foot swings across the body but the body doesn't turn out from the partner. In fact, most steps through in promenade have at least a slight CBM rotation, which is to say the hips rotating inwards, towards the partner - something even when the figure will ultimately be making a turn in the opposite direction.

It should be mentioned that both feet must be pointing in the same diection as step three is taken. Big fault to leave the right foot pointing the opposite way.

F.trot-- not a good comparison with waltz.
One of the major problems exiting chasses from prom. ( in most instances)is the lowering TOO early, before the moving leg closes to the supporting leg and continues on its journey .

Also, the tempo you are using to execute the chasse, can have an effect on your balance problem .
this is a clasic e.g. where a picture speaks the proverbial " 1000 " words .

"One of the major problems exiting chasses from prom. ( in most instances)is the lowering TOO early, before the moving leg closes to the supporting leg and continues on its journey ."

The reality is that in most situations such as this, especially when performed with the modern amount of overall lowering (feet + knees), a continous and natural downswing requires that the heel lower long before the completion of the step, because the actual completion of the total lowering will occur in the knee, and the knee bend occurs mostly after the foot is flat on the floor.

The second part of the reason is that it's necessary to delay the movement through of the trailing foot, in order to produce a fully stretched promenade position. The foot will not actually come through in this case until sometime into what would ordinarily be considered the period of the next step. This is so that when it does come through, it does so in isolation - taking the back knee across the body to the front shoulder, WITHOUT letting the trailing hip rotate forwards along with it. Fail to stretch into the promenade, and that erroneous forward rotation of the hip is almost certain.

The q was more towards balance--given that many beginners " collapse " on 3,by over extending the movement and get weighted too far forward , subsequently losing balance and control of the momentum .

Additionally-- the majority of postings ( on these sites ) seems to be from beginners --taking this into account, too detailed and technical responses , sometimes, may cloud the basic issue.
I would never consider giving that much detail, when a more simple approach would suffice , particularly in this format .
The common mistake I have found over the yrs, with newer teachers-- teaching too technically, as opposed to teaching technique

Teaching is an art in itself. Too much too soon can do more harm than good as you have said.
If I were teaching a group of beginners the Whisk in the Waltz I would tell them that there is Sway to the left on 2 and 3 but we are not doing that at present. The same with the Sway to the left on the Open Telemark Step 2. I wouldn't have one of them come up to me in a years time and tell me I left out one of the most important things.

"Additionally-- the majority of postings ( on these sites ) seems to be from beginners --taking this into account, too detailed and technical responses , sometimes, may cloud the basic issue."

The poster who started the thread was asking quite detailed technical questions.