i have no experience w/the Morley's kit. I have a full Stage 7 install. My mechanic tuned the Stage 7 so I can run the VBoost, though the sense of "camminess" you get w/it is reduced, the engine just keeps pulling smoothly right-through to redline. I have a Dyna 3000 ignition box and love it for the rev limiter. I haven't experimented much w/the ignition curves, but will eventually. I also have made an attempt to run w/the VBoost left open, and while the bike seemed to run OK, I went back to the functional VBoost. I am dyno-averse at this time,
http://www.vmaxforum.net/showthread.php?t=21873&highlight=Dyno+dilemma
so I am not going to have dyno results to back-up my changes.
My setup doesn't much like being wacked wide-open below about 6K, but if you roll-into the throttle, it pulls cleanly even from down-low. There is no surging or "hunting" when you are running at say, 3K rpm. You can cruise at that throttle opening if you wish. I sometimes run it a gear lower if I need to rely on snappy acceleration when in heavy traffic, to avoid any lag. If things aren't requiring lots of throttle manipulation I can run in 4th or even 5th, but to make a clean burst of acceleration from say, a 40-50 mph starting point, I would gear-down the bike to 3rd, and then go back to 5th to resume cruising. I often will change-up > 1 gear at a time to avoid having to shift so-much, and 2nd is probably the upchange gear I bypass the most.
Honestly, your results w/either should be satisfactory. Sean Morley is available to help you w/any issues you may have for his kit, a distinct advantage. The other members have lots of Stage 7 experience, too, so if you chose strictly on the basis of, say, price, because you got a deal on a used setup (I got two that way) then you should be able to get it running to your satisfaction. I think the Stage 7 may provide a bit more intake noise, which some people like, I do, because of the individual K&N pods.
You should invest a few nights doing the search function, and cut & paste the entries you find especially helpful to a file. Then read those again, and decide which-way to go.
