Are you sure you applied enough grease to all areas where metal is contacting, bolt screws, place where saddle rails fit, place where that thingie rests that adjusts tilt?

If you decide you really don't like the post, the kalloy uno 374 post from wallingford have a lot of set back, and are cheap and reliable. Single bolt design, but I like this. Thompson's have much less setback. Be careful though, not all kalloy uno's are created equal, but the wallingfords are great (my understanding is that the 374 model is custom made for wallingford to work with brooks saddles, unos from other stores have less setback).

http://www.wallbike.com/seatposts/uno374.html

I had a lot of trouble finding a seatpost with enough setback and that could tilt right with a brooks (many seat posts won't level with a brooks). The only 2 I know (and I tried a lot) are the uno374 (aluminum) and the alphaQcarbon http://aebike.com/page.cfm?action=de...=30&SKU=ST4700 (carbon).