Hi Chev Malibu,
I get your point as to what you are doing and logically it should work fine as a complete kill to the system.

Is there a possibility for a ground bleed through the computer? I run an LT1 with a computer (actually have two cars with LT1's) and I think there is the possibility of a bleed happening. It likely won't be a problem except on the inadvertant start-up that we discussed above... but as long as you are prepared for it, it shouldn't be a problem.
You mentioned "Splicing" into the computer but wouldn't it make more sense to ONLY suppling the ground via the Keep Alive?
Jerome