thanks for the replies, i think it awesome that some of you guys get to do coding for a living, your definatly more advanced than me, lol. I've mostly only built analog firing systems, with the use of some code to give them some bells and whistles. But i am currently working on a digital system, and trust me i spend more time thinking about the BUGS than writing the code! I would hate for someone to get injured or worse because of something that i could of controlled.