Locks that work

Onguards have a reputation for not being well (or at all) weatherproofed IIRC. FWIW I've got 2 Abus Mini 40s and they work very nicely. They certainly feel very solid. They are pretty small though: you're unlikely to get round a frame tube, wheel and bike stand unless you have mad tight clearances.

So do you use the abus 40's as a primary?