I know this sounds silly, but make sure all the bulbs are 44's and not low light 47's. Check all the 555's by comparing them to new 555's.
NOTE -The globes i buy from Mark C (PSP) are the best quality/brightest i have found. I recently swapped out all the bulbs on my Teenage Mutant Ninja Turtles , and Marks bulbs were so much brighter than the others i had previously purchased elsewhere. I dont know what brand Mark uses, but they are the brightest. Some of the others around are dull compared to the last batch i purchased and was very happy with.

Brett is correct about the lamps. the lamps that came with his TMNT where the worst lamps i have seen. just changing the lamps mad a huge difference.