I discovered this weekend that I can no longer change my adapters on the Indulgence as the 801 adapter seems to be stuck to the thread cap-I usually vape with a 801, but when I tried removing the 801 to fit a 510,it was impossible- I soaked the treadcap with adapter in hot water, tried loosening it with pliers. sparyed silicone oil, but no go. Is there something else I can try to loosen the adapter from the thread cap?