has anyone here had experience of hook suspension? particularly in he UK or know of anyone in the uk?

we've been doing quite a bit of research and found a great site thats pretty informative unfortunately we cant find anything UK based.
obviously its fairly heavy stuff and pretty specialized and we want to be certain when we do 'do it' that we are with people who know exactly what they are doing and have plenty of experience and take it seriously and perhaps find somewhere that does educational demos/classes etc..
id be very grateful if anyone can be of help in this field

( i wasnt sure where to post this sorry)