i've just joined the twinshock trials brigade this year too on a beat up old TY175.
(yep, they're everywhere and the obvious choice for the entry level twinshock guy).
the Logan Districs club is run by a pretty fine bunch of people i believe but i joined the W.D.T.C. and have done 2 trials so far this year and am enjoying the fun "BIG TIME"!
so far in the twinshock class i've seen mostly 175 TY's, a few nice Bultaco's, a Honda or 2, some really weird home made "specials" (TS250?, DT monoshock converted to twinshock and some other stuff),
no Monty's? (where are they?), no Ossa'a, no RL's, a Triumph (possibly the same one), a BSA Bantam
got any pics of the day edmedg?