Yeah mate thats what it should do. If it works leave a post here.
I'm not sure how far away multibit-hd is but I'd be happy to keep a semi updated checkpoint file available for the guys that want it.
After chaning the file and hitting the Reset, multbit started to load all blocks since my first transaction (Dec 2013). It doesnt appear to help :-(
It works when you have multiple wallets, you open one, sync it, close it and then open a second one, at this point MultiBit syncs this second wallet from the time its checkpoints file was made.
Thanks to esotericizm it now syncs from november 19th last year, so it is a lot faster!
spiccioli