I am about to buy Lynn's magnetic paddle strop with the .5 diamond spray on wool. Can't seem to find the flat bed bench that he uses in one of the videos online anywhere. (If anybody knows let me know). My question is concerning the 1.0 m diamond spray for a slightly duller blade. Is it best to apply it to a roughed leather or should I put it on a hard wool felt like everyone seems to be recommending for the .5?