Yellowhawk, I have the 4* 60 size and it is a real good flyer. I also had the 4* 40size and it was just as good as the 60 size, I just like the bigger planes so I went to the 60 from the 40 size.
The 4* are much slower in landing than the P-51 PTS, but the PTS is sure alot of fun as well. I would say that a taildragger would be harder to take off and/or land in high grass because it will want to nose over if it is high, so just make sure you give the yard a cut first.
Oh yea, I know for a fact a taildragger does not like trees either. If you want to know how I know this give me a call.