5.1 this morning. To test myself I had a baked potato for the first time since diagnosis with my evening meal last night, 240g of potato, with before/1 hour/2 hour readings coming out at 4.6/10.3/6.4. My (non diabetic) wife tested at the same times on 150g of potato with readings of 6.6/7.3/6.6. I was surprised at the 10.3 which is the highest reading I have had since I got my meter in January, but I interpret this as my pancreas, while not working as it should, can still deal with carbs quite well. I did a further 2 readings at 3 and 4 hours to record 3.9 and 4.5, so it looks like there was a bit of "overshoot" and then recovery.
Maxwell
Maxwell - If that was your first baked potato in a while (how about other fast release carbs?), you my have experienced some enzyme lag. By that I mean, your body hasn't been used to coping with that sort of food for a while and doesn't get it's enzyme production quite right, at the first time of asking. You can "prove" this by repeating the meal, whithin a few days ideally, and see what happens.
I know from introducing a few more carb options myself, I had an uncomfortable few days whilst my body got the hang of it all. Now I'm back to staying in the 4s after roast potatoes or chips. I haven't had a baked potato for a while, for no other reason than we just haven't.
I'm not trying to encourage you, or anyone else, to up the carbs, but explaining what myself, and others have found. There is some research work out there talking about feedback loops and enzyme production being influenced by the previous days' eating patterns, if you want to have a search.