Hello all this is my first post here as I am new to this forum. My questions are, has anyone ever used bearings from Sapporo that are made in Japan. I have bought 2 sets in the abec7 spec and they are stainless steel balls with stainless steel racers. How would they compare to Boca abec5 ceramics? Also I have 2 daiwa tatulas a Revo s and a lews lfs do they all share the same size worm shaft bearing size? Thanks for any input.