Ok, refocusing the build a bit : Sor0's build at the top of this page can achieve scary damage while still playing GOD ; THIS is what I'd like. Next step : How badly would the build suffer if Recaster were replaced with Spellwarp Sniper and we used a ToAL (which the character already has now) to cover the lost spells, and replaced Stormcaster with Incantatrix (2 metamagic feats, circle magic lite, metamagic effect, and metamagic spell trigger at level 5). I know the DC boost would drop to +4, and one stunned condition would be lost (and the deafened one as well IIRC Stormsinger), but that's still +4 DC, Stun, and Prone on every spell, not counting any possible side effects. Would SWS make those automatic from BoTT?
Answer: Not giving one. I'll give you a question instead. Does a two feat investment work out for you?
In case you forgot, Bo3T dazes you with each use. Quick Recovery
(LoM) and Mark Of The Dauntless
(Dragonmarked) are the only things that I know that stop being dazed. MotD is a two feat investment and with those save DC boosters Quick Recovery probably won't cut it.
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As for dropping Recaster for Incantatrix. *shrug*
Recaster suffers a spell advancement to gain 5/day maximize, 3/day quicken, Eschew Materials, 5/day Sculpt Spell, and of course any two spells you wish are now class spells. Greater Arcane Fusion is a must and you could take Fire Shuriken with the other.
Incantatrix bans an entire school and banning Evocation is no longer a choice and Iron Will (problem considering you need to deal with daze) in exchange for pretty much just Metamagic Effect. The buffs keep you alive longer, but do nothing to increase your blast powers. Don't get me wrong, while attaching Bo3Ts to a Snowcast Flash Frost Permanent Arcane Sight is cool and all you need to consider your party. There isn't very many portable offensive spells outside of Fire Shuriken, which given it's nature you could just hire an Incantarix to help you craft anyway, that won't fry your party. Now consider your role, do you need to be the reason the warblade has Bite Of The Wearbear, or do you need to take levels in something that pertains to your idea of blowing stuff up?
Also I'd recommend hiring a Cleric to Divine Metamagic up a flash Frosted Opalescent Glare, it may take an action but it allows you to talk to people.
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Spellwarped Sniper sucks. Worst class ever.
Take Ocular Spell. It allows you to store any two nonpersonal spells which automatically become ray spells and both are fired off with the same action.
Basically, you replaced five class levels with one feat, +2d6 damage with x2 damage, and gained the option to Geas people you don't like.
Stormcaster adds the save vs stun effect for free, the PrC it's self does cost a level of spell advancement is it's downside. If Daze immunity isn't feasible you'll have to use it or lose battle control. At least it boosts your effective caster level by 2 and gives you partial resistance to your own spells incase things go south (spell turning or such).