Dennis . A competition dancer would never do a Spin Turn. 4 5 6 of a Reverse. a Reverse Turn. a Whisk and Chasse to repeat. If they did they would be out of phrase with the music. If you did, and it is worth trying, you should feel that you are dancing the strong beat on the second half of the Spin Turn. It is quite possible you have been doing this without even realizing. A judge would pick it in a flash
Todays teachers should not be putting anything that will not fit into an eight bar phrasing. If you do your own be aware. Latin is the same, even the Jive, and don't forget the Tango.
The V. Waltz is different. It is impossible not to go out of phrase. Thats why they should wrap it up and send it back to where it came.The V.Waltz is never danced at Blackpool. Best wishes