Your on the right Path Craig, keep it up!
Yes, it is fairly typical in that it takes a bit of time to get your HbA1c right down. 7% is heading in the right direction. It will come down some more yet, and then it might stabilise at some figure or another.
My guess is give it another 6 months and if it isn't below 7% your doc might offer meds of some sort, probably Metformin. Don't be to anti meds, we all vary and the only way to get the figures down for some is one form of medication or another. The important thing is to get it down a bit more maybe 6.5% is doable?
H