Locked out distributor...

Well I called the Holley MSD tech line this morning.. (aka the ashtray on a motorcycle)
It took him a minute to find on the instructions where it said they preferred you to lock out a distributor... He got it once I pointed out it was right at the beginning LOL.. he said that when I did activate the retard that it would just drop it whatever amount I set it and follow through the curve... When I asked why they suggested locking out the distributor basically he hung up LOL...
It looks like some questions are just going to have to remain unanswered LOL...