It's late in the thread, but I'll agree with teh above sentiments. The 710 is a tour de force, the best production 4"-bladed utililty folder out there bar none. The ergonomics are secure and astoundingly comfortable even in extended hard uses. The blade shape is useful across a broad range of applications and performs superbly, and is especially impressive in slicing jobs due to the recurve.
The only complaint I might have is that the older versions of the 710 came with edges that were IMO unacceptably obtuse -- something like 25 degrees per side. I spent at least an hour re-profiling mine. As you can read in my "How to make the Benchmade Axis perform" article, by re-sharpening my axis I got a 700% performance increase for slicing hard rope -- no exaggeration. I tried this against a newer production axis at our last bay area get-together, and straight from Benchmade the new 710 performed much better than mine had. At most, my hand-tuned 710 doubled the performance of the factory-sharpened 710, which means they've improved a ton.
Joe