On ebay those GZ4000/4500 go for $310 delivered to your door. They are 40-44cc saws right? Still they actually will have to compete with things like used 455's, Husky 450's and my bet is things like the new 543...the genesis of this thread. Wonder how they compare head to head....and which ones responds to mods the best?.... That's why your (Chris-PA) Chi-Com build threads are interesting because it forces that analysis at least at an intellectual level. And judging with the visceral reactions, what ever you post Chi-Com related is GOING to be read! Dollar for dollar? It would be fun to pit my Chi-Com Huztl or your G621 Chi-Com Saws, build both repeatable at around $250-$300 to any new saw in that $300 price ranges for raw performance, so dollar per dollars "chi-com" to "big mainstream three" comparisons can be brutal to smaller new saws on the surface when raw power vs. intended purpose is the definition of win. No replacement for displacement! Question is can those $300 dollar GZ4000/4500 series be modded to challenge $400 dollars offerings?
These threads remind me of the Motocross threads when Mike Alessi or James Stewart start doing well....LOL! The two guys the rank and file moto fans (Stihl buyer types) love to hate! (JS has won 5 this year, 3 in a row! I'm a fan. Hope he sneaks up and snag's the title!)
So we are all dying to know if the 543XP will make the Husqvarna users/fans proud! Or will they fall into the category of an interesting but unwanted intrusion from the pacific rim into a crowded spot in the saw marketplace. Time will tell!