I got the SH-86 (blower/shredder)at the start of the season.I really wanted a big Shindaiwa backpack to replace my dilapadated Craftsman, but I just couldn't justify the purchase seeing as I only have 2 trees (and one is tiny) on my property. The first tank was kinda unimpressive, a lot better than what I had, but not what I wanted. I took the spark screen out and the little son of a gun really seemed to respond to it. I only use it once or twice a week for just a few minutes at a time but it seems to be waking up. I had no need to trim the limiters, it actually four strokes at WOT till it warms up. I have not used the shredder yet but I did use the gutter kit I bought and all I can say is make sure you wear old clothes and a hat. Andyshine77 has used it as well and I think he's kinda impressed with it as far as hand held units go. In a nutshell, I LOVE IT!