getting back into playing more paintball and have the older model rt gas thru rail. i see for the ule trigger pull that its not a lost cause with older types but the link for getting hole drilled not helping me much. Can someone direct me to a person that can make the adjustment or what size and the process (steps), i'll see if can get tapped(drilled) locally. i just dont see getting a new one this marker works great and want to stay manual. i will be adding the double trigger also. thanks for any help