I know you probably know this, but...I bought my 2nd DT10 with release trigger by Spears. When I tried to swap the trigger groups between the two guns, the Release trigger would not work in the other gun. My understanding is that the metal housing has to be altered to accomodate the release hook. Otherwise I would just trade you because I took the hooks off as I don't shoot release. Sending the whole gun is a pain, I agree, but probably necessary.