I'm new to Size Matters and wanted to know if it is valid for a run to be on PSVita using the PSP Version?

Hmmm. We actually never thought of that. We are going to discuss about this. Thanks for the idea!

No problem. I've seen myself it runs smoothly so maybe just have it along PSP?

PAL PSVITA is based on the platinum version so it's super slow. I don't know about NTSC VITA however.

Well...PSVita is hard to record from. However, you can record from PSTV, the question is: does PSTV has differences in loading compared to Vita?

I haven't had much trouble on NTSC version. When I get my new Vita I'll try some glitches and see how they work!

As a follow on to this, would the PSTV be a viable option to run the game. I know it's practically the same as the PS Vita version but I'm just curious

NTSC PSTV probably would be. PAL would be slow just like VITA.