Just out of curiosity...who doesn't want you to add more light? It's cool, cause the 42w bulbs seem to be doing the trick, but did someone bust ya and say "If you wanna do this, you cant use so much electricity"
Plants are looking awesome by the way, this whole grow run off two 42 watters? Pretty sweet, keep up the good work!
the idea of growing under one bulb sounds......tempting???lol. the only prob. i have with it, is that you wont be able to distribute the light evenly across your grow space.