I've just dug out some boxed 2008 prems (not sure if that vintage were still considered good)
I have tried them in my hw80 and early results appear promising. They are a very tight fit.

Two questions,

A, does anybody else have good results with prems in a HW80?

B, does anybody bother seating pellets with a thingmajig? I remember back in the day thingamajigs being popular amongst anoraks.