Are you considering a mil-dot as well?
I would get one of these if I couldn't have the R2 reticle, especially considering your situation, I'm often in the same too.
Perry Systems "Exbal" program
http://www.perry-systems.com/ works magic with these reticle designs, well worth more than the money it costs, I just got mine in the mail yesterday.
The mil-dot would give you other highly visible reference points to help center the crosshair, not to mention all the other advantages it offers, especially when using Exbal to talor the reticle to your specific load, and at whatever power setting you desire. You don't need the Palm device to use the desktop program and print whatever you need either, the Palm device just gives you a little more latitude in the field is all. Of all the programs I have, this one is the best, this includes Oehlers, Point Blank, Load From A Disk, RSI Lab, and others, all for only $35.00! All the others have their own little features, but the ones that count are in this one, and I've seen almost all of them! It has a HUGE library of bullets, BC's and Factory Ammunition ta boot! It even includes Lost River Ballistics entire inventory as well! Complete copy and paste drop charts, on and on and on... This program is truely a diamond in the rough!
Sorry to go on and on about it here, but I would be glad to have gotten a mil-dot long ago had someone had said these things about this program.
Take care,