Keeps the requirement for r8 154 coz w.o only helm LA would have 154, u'd replace by using the arcane one that has only 79 STR and u'd walk around with 40 more dex(u lose 20 from LA helm, gain 60 from difference, 40+ profit) + u get RPD.
so ye, only way to keep requirement for EAs/Sins and keep their dmg in place