What do I need to be careful about when replacing tuners on my as153? I have never changed tuners before, but I find that the tuning stability is not the best (so I'll probably change the tailpiece as well). I can't find any exact measurements or information about the stock tuners on the internet.. So any experience or recommendation would be much appreciated. ThanksI have a 2017 Ibanez JSM10...which is very similar to the AS153. It's a fantastic guitar. The only real mod I did was change out the stock tuners, they weren't bad...but I found some Gotoh tuners at a good price.