Never had a problem with my thumbs

I think so. It looks like the one I have they work great. I just normally forget it at home.http://www.midwayusa.com/viewproduct/?productnumber=952670
Is this the correct Uplula?
That video was impressive!
That's exactly what I did...The mag loader that came with mine didn't like the last round at first,but now its fine.
Tip:set the mag base flat on a table then try, it worked for me the first time i loaded my new mags.
Hope that helps.
Yep, Amazon was the best place... Thanks for the tip, DoctorBob!NO, check out the plain old uplula at amazon
http://www.amazon.com/dp/B001HBHNHE/?tag=googhydr-20&hvadid=4074766975&ref=pd_sl_6460meyfc0_e
They are just wonderful