>>1177625I've got the MS3 and a Goat link, looks a lot bigger on my 26er. You sure your shifter does 4 gears at once? I swear mine only does 3, will have to double check tomorrow.
As for droppers, I've got a DNM one (ASP I think) which is one of the best cheap options. No side to side wiggle which some of the other cheap posts (and even some of the expensive ones) suffer from and you can lift the bike by the saddle with the post dropped without it pulling up which is handy.