I have 16/46. My Bird is just my play bike and I don't put many miles on it at a time (have another bike for that) so I like it. If I were doing longer trips (200-500 miles), I would have stock gearing. I guess it is like riding around in 5th gear on the open road.
So there is a 1.8 inch drop from moving the plates. That's a lot. I don't think that you could drop the front by using the triple that much without things hitting.
I have both and you are right. The Corbin is a little lower but is wider in the front as you said. If you go to one of the meets or know of another XX around, it sure is easy to trade the seats for a ride and see if it helps you out. If so, you can pick one up pretty cheap and it isn't too hard to trim some foam out of it to make it even lower.
Two inches is a good bit. Are you going drag racing? Sunday night, I might be able to give you the answer to a one inch drop but I am not sure that you can just double that for two inches. Maybe the smart guys wills pipe up.
All this reading just to get to this?
Just kidding, thanks for trying. People can rag on Dunlops all they want but every one I have ever installed took very little to no weight (not that I have them on the XX).
Walking is good for you. If it were me, it would be in the parking garage. No sun, no rain, no bird poop, no strong gust of wind to knock it over, no dog lifting it's leg on it, no homeless guy from sitting on it, well I guess you get the point.
Do you have any photos? I would like to see both the header and can. I have Yosh slip-ons and like them but they are on the quite side. Not sure about the full system.