I have recently read a lot of opinions about modding the block on a strat tremelo system. the oen Block is rather on the thin side and I have read that changing it out for a MIM block will increase the sustain. I know some basics about sound waves and mass and density so from what I have read it seems to be split 60/40 against their even being a noticeable change and if their is a change it is because the guitar was in bad need of a the added Mass. I am open to any mod that will enhance the already existing tone I have. also I am not a traditionalist. I am not trying to keep the strat tone. so I am wide open to suggestions.