Fresh install on Enhanced Edition 1.3 with BPSeries done last.
BPRANGER
Switching buffs rotates between Long Sword, Medium Shield, Short Sword and Off.
BPFT-RNG
V doesn't appear to do anything. It's supposed to switch between find traps and stealth mode.
BPFT-TH
If you enable stealth mode then the character won't find traps until they're successful. As the two aren't linked I see no reason for the script to link them either, and carrying out this procedure manually has the script reenabling find traps almost immediately after a failed hide in shadows.
Numerous scripts mention favouring ranged, but all of them seem to be setup to use melee intuitive as the default weapon swap.