Yep, I'd buy a couple of locking rings right away if they were available. 
So I went out and got some 400 grit sandpaper like David suggested. Wrapped it around a sharpie and turned it around inside the button housing and buffed out the aluminum locking ring. Both pieces got a little scuffed, nothing too noticeable though. The mod seems to be hitting better now which is great, but I wish David would put up some replacement locking rings since I cant use my ELA for 10 minutes without the tube sliding upwards due to a weak locking ring. Not sure how/when it got warped,.
My shiny ELA is the most perfect of all my Super-Ts. I don't know how anything can be perfecter than perfect but it is. It is absolutely flawless.
Good news, David sent me an email telling me that my ELA should be ready to ship back home tomorrow!!!!!!!! Crossing fingers ELA is back in my hands by Saturday.
One thing is waiting for it to finally get to you while waiting for your order. Another thing is having used it since June and being with out it for 2 weeks.