Hi Mikey:

The T2 has about 4.2 or 4.3 Megas of user RAM, keep in mind that this is for Songs/SMF/User styles, Registrations, user voices and User pads..so, the number will depend upon the size of each individual item.
I personally use only Registrations Banks, in my T2 I did installed the optional Hard Drive and 1 GIG RAM, this Ram is for TVN sounds that you load into the T2 (Multi-samples) and also for de Digital Recording Feature.
You also can use the USB drives, I recommend you to use the Registrations, because you can Mute and or re-orchestrate the style parts without going to edit into the Style creator, also change volumes, Pan, Filter, EQ, etc..
If you decide to make User styles, I would make a Folder and inside of it, put the Styles and Registrations you want to use, this way is almost no lag time to load, just about the same from the HD.
I Hope it helps you.
Manuel Dorantes from Phoenix Arizona

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mdorantes