Rifle's replacements don't offer a 27". Are you including the height of the base?
Just wondering, because I might consider a taller Rifle replacement because I get a lot of wind noise with my 13" (cut-down from a cracked 17") even though I have a Laminar Lip. The LL has worked well for me for preventing buffeting, but I still get a lot of noise in my helmet.
27" Rifle, all the way. Nothing against the CB, but it buffeted the crap out of me. Side protection was pretty good, but over tyhe top, nope.
My 27" is perfect. And cheaper then a CB.
My $.02, take it if want it.
Ride safe all, ATGATT please.
Greg