Rick,
The goal of the getup in the program minimum is to get stronger. Getting stronger means using a heavier bell. How do you know if you can use a heavier bell? You try it and see (using appropriate safety precautions). If you can do 5 reps a side with a given bell, smoothly, with good form, and with moderate, not all-out effort, then that's a good time to test the next bell. If it goes up, great, time to start moving up. If it doesn't, there are several possible answers, one of which is more reps with the current bell.
Frank, I'm very glad to hear someone is doing that. If I had it to do over, and know everything I know now, that's what I would have done. Keep us posted on your progress, can't wait to see you standing up with the beast!