both my guitars, an ibanez rga42t (floyd rose) and stagg strat copy, have this weird problem where they produce this ringing sort of tremolo sound. it's not very noticable normally but with distortion it becomes severe enought hat the guitars are basically unuseable with distortion. i'm 90% it's the guitars as the problem happens on two different amps, with different leads. the problems on the stagg started shortly after changing to 12 gauge strings and on the ibanez it started when i restringed it/balanced the trem after 1 month of waiting for a replacement saddle. The stagg also went a time without 6 strings, but the problem started a fair while after this. the floyd rose on the ibanez is not perfectly set up and the stagg needs a refret. could any tell me the cause of the problem?