MPC 500 / JJOS Compatibility

Hi there,

i‘ve got a MPC1000 with JJOS2XL and i know that there is no JJOS for the MPC500.

Let`s say I use the MPC500 as a couch device for catching ideas and I‘ve got some samples in some tracks in a sequence going.

What happens if i take the CF-Card, put it in the MPC1000 with JJOS and load that project?
I know the pads have different Midi-Notes on the JJOS but after rematching the samples in the program - could that project be played on the MPC1000?

I also have an MPC3000 - could the MPC500 save a project that is usable on the 3000?

Thanks in advance!