i know you have a top spin defined somewhere on this site cos i found the link on google, but now ive registered i cant find it!

If you ever need to search a specific site, then typing the term to search for followed by "site:example.com" without the quotation marks into Google will search only the site specified. For example I typed "top spin site:https://www.ballroomdancers.com/" into Google and the first result was:
https://www.ballroomdancers.com/dances/info.asp?sid=455
This is actually the same system many 'in site' search engines use.
For more info about getting Google to do more advanced searches look up Google search operators.