Having to wait for a PrimitiveMemberEditor sync got you down?
This is a ResoniteVR mod that makes refhacking easier by modifying ObjectCast<Object, Object> (an otherwise useless cast) to toggle between RefID and ulong (and for anything else, act like before)
This lets you loop through multiple RefIDs and grab the corresponding IWorldElement immediately, in the same execution context.
Because it just modifies an existing node, it's compatible with people that don't have the mod. Just make sure you are the one that sends the impulse and it should work as intended.