I'd avoid putting stat points in acc/ss on the relic actually and dump everything on det/crit. This way you adjust melds/gear while still getting full scaling benefits (in future iterations of the relic I mean) on those two stats; if I remember correctly, splitting stat points in more than 2 stats led to a very small loss of points (like 1 or 2 less than a pure det/crit). Not sure how/if this would translate in a much larger pool of stats implemented on the weapon.