Also AP, am I reading Supra's spreadsheet wrong? I thought a single Vero 18 @ 700 mA would bring a little under 20 watts, while you're saying that 2 of them would bring 16 watts.
I was thinking of 2x Vero 18 3500k @ 1050 mA if I could get close to 30w out of each of them, if not I'd want to go...