I have no personal experience to offer you, but there have been T2s on insulin who have been able to reduce their insulin use, and some even able to stop using it.
I would say that you must be able and confident in adjusting your insulin dosing to go down this route, as the blood sugar reactions can be quite marked, and not take long.
If you intend going down this route, please ensure you have lots of strips so that you test as often as required, in order to remain safe and comfortable.
Good luck, whichever route you take.