Noted. I'm not used to TTRPGs besides D&D having such gaps, and D&D... is criticized for being bad at choosing what gaps to leave in and which to fill, so the idea you might've left that on purpose as intentional design just hadn't crossed my mind.
Also your various answerings to my first question somewhat pre-answered my 3rd that was 1+2, of Specialist using higher Psionics, so that is nice. Option 1 I'm not seeing making sense for that, as that brings us back to question 1 in a way, so 2 or 3 I feel I lean more toward now. 2 for simpleness 3 if 2 proves overly powerful to perform.
Thank you so much for your patience.