My DH has been Diabetic for 16 years, and is still fine with testing once a day and feels good. This is what we did quite some time ago: We quit Splenda and all artificial sugars as we kept reading the are bad for us.
So I reduce sugar by 1/2, and it doesn't effect the baking process, and his readings are within guidelines from the dr. He say to average 150 and AIC of 7.0 is good.
His last trip to the dr. he was 7.1 AIC and everything else was okay.
That is the big thing is to cut sugar in recipes by 1/2. I also push fresh fruit and veggies.
There has been a lot said around here that the artificial sugars are not good for us.
Good luck!
Mariah