Hello All I have an Ibanez RG 7620 (25.5, low pro bridge) tuned to drop A with D'Addario strings 9-54. I really liked my string gauges but I brought it for a setup because the action was getting too high past the twelfth fret. The tech said the best he can do for the low A is 60 and that was pushing the limits. This was because of the tension on the guitar I got the guitar back the other day and the low A lacks sustain. When I hold a power chord on the lowest strings the notes on the low A don't last as long as long as the low E, it sounds bad. The tech is saying I should go up to 10's and/or change the low A to a 62 or a 64. What do you think? What should I do?