SwapperMX.
The handling i find is great.My bike turns as well as my rm did but with a little bit more stability at speed. The tm's are alot less twitchy then the katoom's. Compared to yz's i havn't riden a yz for a few years so can't really compare. But stock i would think the tm would be better off road.
Suspension wise the bikes are awsome for a standard setup. Mine has the optional Ohlins.
You should not need a revalve at all but the spring may need to change depending on you weight. I am 5"10 and 85kg.
If you buy new you can specify spring rates.
The egos of mine are spot on for my size with plenty of room to move around with.Similar to my rm with bar risers.
The seat height is lower then ktm's which i like. Ktm's are just too tall these days unless you are a freak like john
You are right about horsepower they do have plenty and the 300's have a good bottom end.
I have yet to be out draged by anything yet.There was a guy in the weekend on a CR500 at the trail ride i did and was hoping to see him out on the track and have a ride with him but never caught up.I rode with a guy on a Husky TCX450 and the bikes are similar in power but mine seemed to have a little more top end. I will say i do get a bit of cramp after 2-3 hours from holding on and you do need to be carefull at times with your right hand. I had to short shift all day yesterday because of the slippery grass. Nearly had a couple of off's with the arse coming around.
There is always the lever on the left bar you can use in tricky situations that some people forget about
.It's hydraulic as well.
Parts are reasonably priced and are available here in nz or 2 days from Aussie.
Get one , you will love it.
