well such is the PEQ motto. But again on your own server you can simply change the level at which you can use any spell- so simply set Improve Invis in DB to be usable at whatever level you like - no compiling required

on a similar note I been meaning to ask btw, My monks FD Fails Waaaayyy to often at max skill, i never failed that much at FD on live at max skill, is that intentional or is there any way you could adjust that ? seems like every 4 to 5 FD's he fails, on live I might go 20 FD's before 1 fail even then that was rare, mind u that was at max skill.