The GSA270DX features a double locking ILT1 tremolo and sharktooth fingerboard inlays. Similar models were the GSA270 (which is a twin except for the fretboard inlays) and GSA370QM. All three of these models have a Floyd Rose-style double-locking tremolo and HSH pickup configuration. As of 2016, these three are the only three models in the entire SA series that have either feature.