I as well have too many styles. Everytime i see a new zip I down load it. This resulted in an embrassing amount of data.
I am a guitar player and use the keyboard for backing tracks. I do enjoy auditing files but still stuggle finding a style from what i have collected for specific backing track i want to make .
Yes this is the basic approach i use to audit styles. I always transfer the folder i am auditing on to the USER drive folder on my PSR. I do this because the User drive allows you to bookmark a Style with a yellow flag next to the Style ( PSR SX 900). This allows you to go through the folder and bookmark the good ones as you go then quickly go back and select the ones you like for saving else where. This saves time since you dont have to copy them out as you find them.
I also use the free styles data base program by Peter Weirzba from the PSR Tutorial Site. This gets rid of all the duplicates and also give more information about a style. I would like to see some one come up with an option that reads styles groups them with similar structues. Band In A Box does this.
AI should be able to read multiple style and then group them by ryhtm section ( Drums and Bass) . For me
I find Gig Styles easier to deal with because they are named after a song.
I have used Jjazz Lab as well with a USB cable to drive the sound card on the my keyboard . This works well, the sound is fairly good but not as good a Style Player Live Preview function which sounds same as loading style on the keyboard.