But why Joe? What is the advantage of pinning versus wedges, other than that you have a cleaner looking stock?
Well Kees, IMHO;
Yes, you can remove a wedge key on the hooked breech barrel for easy take out and cleaning. However, every time the barrel is removed,,, is it put back in the exact (and I do mean exact) spot from your last good zero point that produced good groups?
Should you have to loosen the Tang screw to get the wedged barrel out, is that Tang screw set at the exact same pressure it was before taking out the barrel for cleaning? Is the wedge to barrel at the exact same pressure once the wedge is removed - then re' inserted? (Now this might not show up immediately, but eventually it will).
With a pinned barrel you don't have these concerns... Your cleaning routine will be different most like, and that's not to say that you can't get a pinned barrel as clean as a hooked breech / wedge held barrel - because you can.
The less any barrel from any firearm riding in a stock - is not removed - that firearm will maintain its accuracy much better.
One other thing, (in the field or at the Range) a wedge can work loose - and even sometimes get lost in the field. Also when a wedge works loose you can tap the bottom of the wedge key holder to tighten it, but that also changes the pressure to the barrel / wood fit - and could affect accuracy.
I've never heard of a pin working loose, or even being lost in the field or at the Range.