Tai & Ashi Sabaki Course/Seminar Wanted

All,

Why is it that we can find so many Seminars that cover the Pinan/Heian Kata or the likes of Kushanku/Kanku Dai etc but non look at the use of Sabaki

This is what I want to attend a seminar on Sabaki and its uses.

Hopefully in the latter part of the year (as I've got a knee opp end of this month) and not asking the earth for the seminar.

Anyone know of any or thinking of putting their own on

thanks