Stihl is going to come out with a new model backpack blower called the br420. The company that I work for on the side was choosen to test beat this new model before it comes out. The br 420 is pretty much just an updated version of the br400. The casing and stuff is redesigned but nothing to major. The reps siad that they have fixed the hard starting problem. I got a chance to use it today, it was pretty good but still dosn't compare to the redmax and shindawias, although it does seem to have a little more power than the older blowers. The reps did say that stihl is also going to come out with a newer model comparable to the redmax, so we'll have to see what they come up with. The 420 is an improvment though. After I used the 420 I used one of the redmaxxes and I still like the redmax better.