Czuch: Here are the Opening Moves. To quote:

5-1: Generally, it is right to split the back checker and bring one down (24/23, 13/8). When behind in the match and a gammon win is a major plus, you might bring one down and slot your five-point (13/8, 6/5).

Ie. it's more risk than it's worth unless you need the gammon.

The 5-point is hugely important on its own, let alone the advantage of sending a blot back by 20 pips, so, if there's a chance to hit someone who slots their 5-point, GO FOR IT!