i'm writing poulan,to tell i'm not happy with themodel pp3516aux, i've had 2 years and the saw hasnever performed well,it spent more time getting tuneed up or repaired ,than it has working ,i was cutting trwees for a living, but the saw broke or would't perform right i wasn't going to write but i got laughed at agian,bcause now i've always used poulon saws why or was there always problems with this was?