Newbie with questions about 3.03 OE-B

If u use devhook on 1.5 to emulate 2.81+ u can get a 4 gb.Also why downgrade to 1.5 if theres no recovery and to play1.5 homebrew on 3.03oe u just activate the 1.5 kernal mode

Backgrounds, ISO's, PSX ISO's, Ability to play all 1.5o homebrew games, All UMD Games Playable, Internet, RSS etc.

to downgrade from 3.03 oe-b u just have to restart ur psp and hold r go to recovery and choose the one that says something like run program at psp/game/recovery/eboot.pbp