ABR intonation

Couple of ABR bridge questions

1. Is there a LPF thread, or a maybe a photo, that shows the effect that different string gauges have on ABR saddle location for intonation ? For example, does changing from a light set of strings to a heavy set move intonation position forward ? (i.e. towards nut) ? How large is the saddle movement ?

2. Has anyone re-positioned an ABR post because saddles are slammed up against the bridge and have no travel left to intonate correctly ? Did you fill the post hole with a mahogany dowel and then re-drill forward (or backward) for the the new post location ?

The reason I ask is that my bottom three strings (strings 6,5 +4) don't have any adjustment available, because they are adjusted fully forward.

thanks for any replies on this.

Heavier strings require longer length, saddles move away from nut.
Never had to reposition a bridge on a Gibson, but I own a couple of post 79 Fenders that need the bridges repositioni g, because their low Es can't be intonated.