I order from theoringstore for my luxe. Oring monkey is great but the Luxe generally dosnt play nice with buna in my experience. Every since I switched to all urethane and HNBR for anything other than outside the firing can I have not had any issues & the gun seems to work better/longer in between cleaning & lubing. The buna bleeding alone kinda moved me away from them. Ever use buna o-rings on a nox bolt? Its damn near black after 1 case or less of paint.
Just my opinion but Ive owned, sold, serviced quite a few luxes. If you buy them from the site I mentioned above your probably not really spending any more $ than you would for a pre-packaged buna kit but the quality of the orings is better. And the dlx rebuild kits usually don't have a lot of everything for the price...just my 2 cents.