I just checked my Case medium stockman. All solid but a little play on the clip blade.
I checked my Case large stockman. Only the Spey had play.
For grins, I checked my Old Timer stockman and all of the blades had play, each with worse play than on the clip of my Case medium or the Spey of my large Case stockman.
It doesn't bother me.
It used to drive me nuts when I had modern one-handed locking folders but that's more because those fulfilled a different set of expectations that for me was outside of any real world applications.
I accept a tiny bit of play on one-blade slipjoints and I am a little more generous with multiblade slippies.
Blade rub irks me but I find a small amount acceptable in multiblade patterns. If a single blade knife rubs the liners, that's a deal breaker, ladies.