Base timing. Really ?

Guys im confused on why you say im better off without the limiter plate. Dont i need to limit the slots or? I dont use the vacuum advance allthough if it would stop the stinking idle i would love to..just confused. I know Don over at FBO offered to set up the distributor if i sent it to him but not sure how without the engine that it goes in..? I would really like to understand this though and do it myself..