Hey RFB
I recently attended a demo for a TV-145 running a loftness carbide cutter extreme. I was very impressed with the tractor. It is a odd setup to get accustomed to. But after about 30 min. I could make it do what I wanted. At first I told them forget it because of its size but after watching and running it that concern was null and void.
The attachment we were running weighted 5000lbs. and it handled it well. I not sure it any counter weights were involved or not. Visibility was the best I ever seen. The tractor had fairly wide forestry tires on it and you could see every corner great.
Being the head was pto driven it took alot to bog it down and recovered quickly. I think a tad more H.P. would be better but the 105 is good. This is probably the most extreme application for the tractor but I was very impressed. If had a forestry package on it and you'd be hard pressed to go up and touch any part of the actual tractor, it was covered with that many guards. It also had 1" thick skid plates but with 3' of ground clearence who would need them.
As far as farm use I couldn't comment for that not my area. The only two thing against it for me were the price tag, $180,000 for the complete mulching package. But also the weight, at 19,000lbs i would need a bigger truck and trailer. The alternative for me is cheaper and lighter.
Just me .02 cents worth, maybe .03cents. Robbie