I know 50's were just discussed in stock form, my question is which one if you intend to have it woods ported etc? Weight is also a big factor here, back problems are pushing for using a smaller saw for most cutting. Been using a modded 372xp and will keep it for bigger stuff, love the power and speed though, want the same in a smaller saw. Also had an older 346xp, really only used it for trimming etc because the 372 is so much faster. Nice saw, but lacking in torque. Was going to have it modded but a family member wanted to buy it so shopping for new. I am not stuck to any brand, just want the best working saw. I like the weight of a 550xp, people seem to like them. Are they still just mm saws or are there guys porting them now. How do they stack up to other modded 50's? There are some pretty mean ms261 builds on here, I like them as we'll but they feel a bit heavier. Have also looked at some 5105's, like the look and feel but have not seen much on modding them. Need to get some more input before I buy so let's hear it.