The one thing that I have noticed is that the larger saws might only be a pound or so difference in weight (this is the case with the 357 and the 372) but that incremental increase in weight translates to a larger engine, AND larger fuel and oil tanks. Once you fill those up, the weight difference is substantial.
Just something to consider.
Day in, day out, I tend to grab the 357xp. It is PLENTY of saw to pull a 20" bar (sorry Troll), but that being said, I usually run mine with a 16.
It is light, powerful, and I personally could cut all day with it.
Problem is, as you have already noticed, power is addictive, and you will soon want to run the smallest reasonable bar on the saw.
I have to mention that I only cut hardwoods, unless some crappy pulp wood falls over, blocking my path.
I run the 20" on my Dolmar 7900, which you should think about checking out as well. Probably the best power/weight ratio of any saw out there.
It really makes the 372 kinda pointless imho.
372 dry weight - 13.4 lb hp=5.4
7900 dry weight - 13.6 lb - hp= 6.3
Perhaps you would consider a 2 saw plan? :rockn:
That clear things up for ya?