I bought a br600, used a few days now to do clean ups. It's powerful enough to blow thatch and so I like it but the choking it does when the tank is half full is very annoying. I did read about this problem before I bought it but I didn't think it would be that big an issue. It will happen 10-15 times at a single clean up. If the tank is half full, the gas will bounce and around and the fuel line will suck air, then you get a drastic drop in rpms and I basically have to stand still for a couple seconds till it revs back up. I never had this problem with my home depot Echo back pack. I would say this is a significant flaw. Now I'm really mad I got screwed around trying to buy a Redmax 8001. The engine also bounces around too much on the back. It's suspended by springs but I can feel it banging around back there. I also don't think it sits comfortably on the back but maybe thats the extra weight and I'm not used to it, but there is a sharp edge near your lower back.