Then again, after reading what @PRH discovered in post #138 and the next several posts in this thread 35% off SpeedMaster I may have to skip the speedmaster rockers and spend a little more and get something of better quality/design.
To follow up on Tony's post. There are three kits available from SM. The two you linked with the aluminum hold downs. I have a set of the 1.6 version and they're everything you'd want to be worried about. No bronze bushings, straight on the SS, chips in all the parts, stuck adjusters, oil holes in adjusters drilled off center. In other words, junk. I used them for mockup work to see about pushrod clearance on a 1.6 vs 1.5 rocker.
On the other hand, the ones that I run now, and the ones Tony linked, come with steel hold downs, and as best I can tell are the exact same rocker set that you get from PRW, minus shims (which you'll need). I disassembled my whole set, didn't find any defects, just some grit that needed to be cleaned out.