In a situation where it might be easier to cancel my current insurance policy 3 weeks before it ends*. I’d rather not, but wondering if I will actually lose out, as assume there is negligible difference between 6 and 7 years NCB?

*Selling my car. Tax runs out 28th Feb, Insurance 21st March. Having shoulder OP on 28th Feb, so would rather have the car sold before. So that rules out SORN and then sell end of March….maybe.

Not much, most of the panel we use stop giving much of a discount after 5 or 6 years but not all. Some will give a tad more up to 9.