Re: BL light box 'blues'
Yes, BL bulbs are much faster than BLB. Also, inverse square applies only to point source lights, not a bank of bulbs.
Try this: find an old negative which you printed successfully in the summer and reprint it under your new bank of bulbs. If the time is about the same as the summer printing time you will know that your problem is with the Pyro developer. If it is a lot longer, you will know that your problem is with the bank of lights. Charles Portland Oregon