yeah do what martin says, I find 31 is a pretty damn good gear, I've got a 27 as well, I was not as happy with that one. you may be very satisfied with that 32, and if not, I think changing the front sprocket up one tooth might be promising, I have not tried swapping out the front gear yet, it may require some case modification. no big deal it just backs up into the stator compartment.
no speed tests, or anything with these sprocks, I dont have gps or a speedo, but I hit about 50 (or so im told by my fellow motorcycle friend) and thats with a 31 toof.