Hi,
I also built c4r0's driver but only have had a chance to drive a pointer with it (with the existing on board electronics in the pointer).... Have you ever tried blanking with his driver design (with a PC)? I ask because you are one of the few people I've seen who have built it and are driving the laser diodes directly...
You can see my project work at
A 'blast from the past' just for fun
Thanks!