[vaporgas2000]

can't really say one is better than the other but here is why I bought memphis shields:

The shield mounts easy and is easy to remove.
The stock kawa shield cost too much
Also the stock shield didn't provide enough protection
Liked the looks better than the rifle shield

It all boils down to go with the look and mounting system that you feel works best for you. good luck.

 

[vaporgas2000]

As far as sizing I started with the poptop but it was like the stock shield, not enough protection and it almost buffeted my head off. Then I switched to the big shot, it does a good job and at 6 foot tall I get just a minimal head buffet. I got the 7 in cut out and mounted it about 1 in above the headlight. Personally I would not go taller than this setup because it would move the top of the shield into line of sight. Hope this helps.