Joey Shabadoo
My pronouns are "He", "Him" and "buggerlugs"
Well... If there was a list from the insurer, why not take it with you when shopping?
Fair point.
However the insurer uses the Sold Secure list, as does every bike insurer I found online - it seems to be an industry standard. If I go into a specialist store, not one that sells a bit of every kind of sport or one that does car parts and a few bike bits, a specialist in the field of cycling with a large area dedicated solely to bike locks I think it's reasonable to expect them to know what is suitable and what is blatantly unsuitable. I don't expect them to first try to sell me the most expensive bike lock in the County and then fob me off with overpriced, useless kit.
I used to be in retail. I quickly learned to keep my prices keen because if one item is significantly cheaper elsewhere, customers feel ripped off and if they see one item where they know they're being ripped off, they assume everything in the shop is overpriced.