It's been a crazy week in the jenm household! We switched endocrinologists a few weeks ago because our team was having scheduling problems and wanted us to wait until winter to start pumping. First appointment was 8/14 (and, thankfully, we really clicked with the new doc)... we returned on 8/20 for a saline start on the t:slim and left pumping insulin! But for boluses only. Our son was taking only .5 units Lantus during his honeymoon, which is too little for the t:slim (.1 unit per hour minimum basal rate). So he is staying on Lantus for the time being. Since the big risk with pumping is DKA, and DKA with Lantus is less likely, they let us go straight to insulin. (By the way, I was wondering why the t:slim - a cutting-edge pump, would have this limitation. I found out from customer service that the t:slim pumps basal every five minutes vs. every 15 or 30 for the Ping or Medtronic. Which means a more consistent trickle but a larger hourly minimum). But I think this will be a very short-lived transition - once his Lantus is at 2.5 he can begin using the pump for basal as well (our endo prefers to start basals at 1/24th of Lantus dose rather than a % of TDD). He had started coming out of honeymoon a few weeks ago - instead of a steady drop throughout the night with what we presume was endogenous insulin, and relatively stable BG readings between meals, he now spikes to 300+ about three hours after every dose. We have also had to change correction factor from 110 to 80 and carb factor from 45 to 25 (in 5g increments). Our new team recognized this and upped his Lantus to 1.0 the morning following the 8/20 appointment but it's not helping and the poor Dexcom is barely able to keep up. So we upped it to 1.5 this morning. I'll try that for two days before going to 2.0. Meanwhile our son LOVES the pump. He did his first bolus in the hospital cafeteria about 10 minutes after our appointment while I was paying shouting WAIT FOR ME! I was worried about him sleeping with it and he just puts it under his pillow like all you wise people said he would, my $70 in various pouches and pockets be damned. More work for me, but such an improvement in his life. I am thrilled!