I almost voted yes right now then something came to me. Time xp is much different than RP's. Time XP HAS to be awarded at the end of the adventure, RP's are awarded, but they can be carried forward. So if someone has a bunch of RP's (like my Cannith Caper Crew) earned before the doubling would take effect, how would we track them? It seems difficult from a judge perspective to make sure that the RP's earned in say June/10 for Haltor are only single when he cashes them in.
A solution would be for the proposal to not be double their value, but rather double the number awarded. i.e. 2 RP's/month of gaming (4 for DM's). We would need to change that other proposal about 2nd PC's to 8 RP's to account for this change also.