I actually called them when I started the PLAT challenge (a week or 2 ago) and asked them to bump me to GLD since I paid for the PLT challenge. They did, no questions asked and re-booked all of my flights as GLD status. The first flight I took didn't have the priority access on the boarding pass but everything is fine now.

I as well was looking to get into this whole MR thing but I don't think I will need to. I fly DFW-LAS twice a week and even at .5 that is still 1000ish EQP a week. I'm at 4,223 EQP and have till October 15th so I need about 6 more trips. I might consider trying out a MR if it gets me to EXEC PLAT but even then I don't think being EXEC PLAT will matter flying out of DFW to LAS and I don't fly internationally. The flight I fly is pretty much always packed anyways. Would like an Elite's perspective on this if it would be worth it!