Hi all, I'm looking to replace the stock bridge on my MIM Fender J, and I'm trying to decide between the Gotoh 201B4 and Fender HMV. I'm looking to add as much mass as possible primarily to address a balance issue, but if there are improvements to be had in sustain, that's cool too. I haven't been able to find exact weights of these two bridges, but the shipping weight listed on Amazon has the Fender about 50% heavier. But of course I don't know how much of that is packing materials. Does anyone know where I can find actual weights for these two? Or, does anyone have any other opinions on which is a better bridge? It appears that the Fender has threaded saddles, which seem pretty useful. On the other hand, the Fender is a good bit more expensive. Thoughts? Thanks.