I just picked up a Wallenstein BX32 for my 2210. It has a 3" capacity but as long as the branch is pretty straight I think it is closer to 4". The dealer suggested the BX42 and thought my tractor would handle it fine, but I opted for the slightly smaller chipper due to the weight difference (30 lbs). And while that doesn't sound like much, I can tell you the loader needs to be on and you probably need to be in 4WD (the ground has been kind of mushy and I have slopes to deal with). The $ difference between the two chippers is insignificant.
On our sister site: www.tractor.com there is also a review of the Woods "Estate Series" of implements and it looks like they have a nice little chipper as well. http://www.tractor.com/features/woods-equipment-co-subcompact-tractor-attachments-1499.html
Nice write up you did on those implements, as usual.:fing32:I think you're going to find a chipper of this size too much for your X.
Ditto!MacKissic also makes a very good tow behind chipper!