I did all these same mods to my Speedplay Zeros. It got them down to 131g. The reason I am replying to this, is ever since I did this there was slop in my pedals, and it was hard to clip into them, even with more than normal amounts of lube. Today I removed the Aluminum inserts and unfortunately the ti hardware as well. You see, I used red loctite on the bolts, and they would not come out. The bolts stripped, and I had to drill them out. My pedals are back up to 159g, with oem inserts, and bolts, but I am okay with that. Well not really I am going to get new ti bolts again to drop a few grams. Never again on the aluminum inserts though. They caused the slop, and are junk in my eyes. Not worth the trouble. The ward spindles and ti bolts I do recommend, and I would like to get the spindle bolts in ti too.