I’m going to jump in here and voice my support for a CGMS over a pump. I considered a pump, but I dealt with the same issue as you, not wanting to be tethered all day long. When the CGMS came out, I thought it was a good compromise. You still have to have something attached to your belly all day, but at least it’s wireless (I should throw in that there is a wireless pump out there now too). But now that I’m using a CGMS I really think they are more usefull than a pump.
With a CGMS, you really understand what is happening with your blood sugar, so it makes it much easier to control it. You know when you’re starting to go low, so you eat something. You know your blood sugar is going high, so you skip that second helping. Knowing whether my blood suger is rising or falling and by how much also affects how much insulin I give myself before meals. I can also sleep more soundly at night, knowing that if I started going low, my CGMS would sound the alarm and wake me up.
To me, a pump is convienent. It makes it easier to give yourself insulin. So, it’s only going to help your A1C if you used to eat a bunch of carbs without bolusing. I usually do no more than four shots a day, plus one shot of Lantus, and my last 2 A1C’s were 5.9 and 6.1. So, you can do just fine with only a CGMS.
Now, the downside to a CGMS is a lot of health plans don’t cover them like they do a pump. I only get 50% coverage. I use a Dexcom Seven Plus. Sensors usually last me 11 to 14 days and they’re $60 each. ( the transmitter was a few hundred and lasts at least a year, the receiver was 4 or 5 hundred and should last a few years). Dexcom offered a free two week trial. I’d check it out a CGMS before you make a decision.