Like "I am not familiar with the cgms-we have discussed it with our endo, but they suggest the pump for 6 mos before we look at the cgms. I am not sure about the site changes because with the pump we are only doing 2 to 2 1/2 days per site-I have heard that the combo of pump and cgms is wonderful and we have seen a change in A1C from 8.1 to 7.5 with only 30 days on the pump...good luck with the comfort issue we have heard the silhoute (sp) is an angled site and offers more comfort in areas that have a little less fat. Dawn"