Ive owned a ms360 n a ms390 for yrs. Both modded by me. Picked up a 390xp couple yrs ago, so impressed with the balance and screaming power of it that I have purchased and gone thru bottom to topend a 262xp,266se which is now a 272xp that is ported. Also a 288xp which is ported too, that saw is scary.
Have run a 660, power to wt and balance aint there, different strokes I guess as the saying goes.
Stihl has priced me out of the equation.