I kind of tried to touch on what you have found, when I did my quick info post. That the "general riding styles" per se of course, the Bultaco was the standard, if it were. the Suzuki, even without high rising bars, has the rider if not too simply put, his weight distributed slightly different. Then there was the Beamish, that took possesion of all the leftover bikes, modified just about everything on the frame (especially geometry wise, and footpeg placement and stuff). and if I recall right, they even semi developed a 350 engine, that I cant recall from reading 2 years ago, that they might not have made it to production... All of that of course, before giving up on these bikes by what, um, early 80's because Yamah ruined everyone's mods by selling the 1st monoshock. But I digress. Seems Beamish (but I dont know) they were a big hit just not in USA, just because they werent shipped up here in any quantity. Stock form AKA as sold by suzuki? Well, the first thing is the correcting of the steering rake, we took out 3 degrees in ours, which is a slightly beamish replica done OJ (of ADV/Trials fame I mean) style. shave some flywheel weight off, extend the clutch fulcrum lever at the transmission for easier clutch, adjust springs on clutch to be lighter yet still hold. other mods are adaptable that people are doing on many 2 shocks... seems yamaha 2shock riders, have done and tried a boat load of mods, ranging from ossa swingarm back in the day, to lengthing rear swingarms (after the bottom shock mount) by couple inches. Hell, there are shocks that you can buy starting at something like 399, and up. it is a virtual money/time pit, screwing with these things that hasn't hit modern clubs per se, I have one, several guys in my club have vintage bikes we "could" ride, but ride modern. it is catch 22. spend 7 grand on a new bike, or dump (could easily cost that much if you had to have someone do all that work and pay them, to make one helluva 2 shock bike. that nobody in great numbers are willing to toss up that hill you almost cant make? like we do modern bikes. that is the RUB in my humble opinion, spend thousand hours tinkering, make nice, then afraid to even back it out of the garage. But spend and toss that new raga around like there is more where they came from... if you know what I mean... *Amended post* The mods are kind of "for those" that ride modern I guess, or ride enough and good enough to benifit from the mods. A beginner? well no mod is truely necessary, since 99.6% of trials riding is "ability" or skills developed. but a poorly working bike design, can hold even world's best riders back a little, you know, but some can be even then overcome with skills or learning how to cope with what a bike doesn't do as well. and getting used to that. you know just picking a different attack path and things, for us mere mortals change more than being able to blame a bike's shortcommings.