I just tried hooking both servos up to my prototype board, to no avail.  I had already been concerned about power problems, which is what prompted the design of the printed board.  Unfortunately, I made some serious errors on the board and will need to modify the plans.  Namely, the pads need to be larger, and I printed the circuit on the wrong side of the board (it was mirrored).  I'm not real pleased with the toner transfer method of printing boards, although I will try it again before I drop it altogether.  Next I'll try the screen printing method already noted, and after that I intend to try direct printing on the board.

On the plus side of things, I had suspected power and\or noise would become and issue for me-and it did!  Since I'm in a small holding pattern with printed PCBs, this will give me a chance to mod my original prototype and work through these issues.