10 sounds much, but they dont get past q50 and are VERY hard to find, since you have to spent/waste your time in a cave and they are rare.
Your method is very infantile. Balance issues arent solved by "hmm lets try this", but by looking up how it is now and then decide how it should work better. I seem to be the only one caring about this. Why? Because no one cares to boosts psy because its just to hard already.
Of course this might not be the final version, but i doubt you would change it back if no one would continue nagging you about it, heck you didnt even solve my lawspeaker issue which i told you about. And i cant wait until you thought about it again and change it to something higher, because i have to eat, i have to dysbalance my stats, making it even harder to raise psy once the bulbs give more again.
Just change it to 8 or 9 and im happy, change it to 6 or 7 when there is a way to get highq cavebulbs to "balance" it again.