I recently went to a 4-bolt frame, and am now using an hs-33 rear. This is an older style one, with a solid looking lever. A friend of mine also has an hs-33 rear, and his lever is a slightly newer style (but not the 2005). His lever blade looks more like a shimano lever blade (carved out back). His rear seems to feel about 3000x better than mine. We just bled mine as well, and we are not sure how long it has been since his was bled because he got his used as well. My question is, what could be making his feel so great? is there that much of a difference in the levers (or pistons) that would account for this? To my knowledge they are both bled with magura blood. The main difference between the two are how fast the pads release from the rim. My lever feels much slower, while his retracks quickly, almost like a v-brake. The feel really is night and day. Let me know what you think, thanks!