This question is about snugging down the trem on a Strat by adding extra springs (since I don't use the trem anyway). A friend set mine up so that the back part of the trem bridge is sitting on the body by adding two springs. He said that would keep the whole guitar from going out of tune if one string breaks plus he said it ought to help tone/sustain. I read a thread here the other day about this but I can't find it now. Seems like I remember someone saying that the screws on the front of the bridge also have to be tightened. Is this true? Near as I can tell, the back part of the bridge is flush on the body. Do I need to adjust the screws on the front of the bridge too? I keep reading about Callaham blocks. Are these for folks who don't want to use their trem at all? Would the added spring thing do the same job as far as tone/sustain? I know that's a lot of questions but this is my first Strat so there's a lot I don't know. Thanks for any help!