Hi, I recently bought an early 90's Es-335 which I really like. The ONLY thing I wish it had is a Bigsby. Adding one would probably make it the Holy Grail for me. Still, I think I need to hear a bit about others experiences before going on with it. Is there anything I should be aware of? Will it alter the tone significantly? What model should I get? Tension bar or not? I like the one without the tension bar because you don't have to drill holes in the top and they feel "looser". Yet, I noticed that the vintage ones had the tension bar model. Of course, it will probalby be bad for the resale value but I intend to keep it for a while. Thanks!