So, he's obviously a human metamagic specialist variant sorcerer with spell focus (conj), metamagic school, and sculpt spell. Sculpt spell leads to some wonkiness, so make sure you realize the range doesn't change. Feats/effects that reduce metamagic penalties are really just badly design; although that could simply be a carry over from the fact that metamagic is badly designed to begin with. But, as soon as you start mucking with it via splat books all bets are off. However, if you actually allow it then that means that the price of a feat is equal to the cost of reducing any three spells of the caster's choice by one level and allowing him to cast spells at a higher level than he otherwise could (this is the normal complaint about divine metamagic). For this, I point you to the errata on the FRCS with regards to the incantatrix. Unfortunately, and very much so, WotC did not carry this very nice errata through all of its billion source books to curb similar such abuses. My suggestion is to flat ban it, as otherwise you will be wanting to write a whole bunch of new posts just like this one, but with different spells.
One side comment, that grell should've gotten to as high an altitude as possible. The maximum range of the effect (not just the origin) is 30ft (although I'm not suggesting you metagame or anything, I am just pointing out the range of its effect here).