My bike is even snappier than it was stock. The only time I've heard of them loosing "snappiness" is if you put in both GSXR cams, then you'll loose a little snap at lower RPM, but it really screams in the top 1/2. In that case, some folks return snappiness back by dropping a tooth up front OR adding 2-3 in the back.
Being as high as you are, you'll have to go leaner with either kit (or any kit, for that matter). That said, mine has run fine with sea level jetting (where I live) up to 6000' range. At 6000' you can feel it's a tad rich, but I don't spend enough time up there to rejet.
I agree with the looks of the pods, but on the 2G B12, you can't see them anyway - unless you modify the side covers. Some have modified their covers to show them off, but I haven't seen this done well enough that I'd want to make the change.