Keep in mind that this is a data based system, not my opinion. So, can you present sales data to show that the names you mentioned will sell for BV2 prices across the spectrums of Original Quality and Current Condition. Note that we must have very close similarity in combinations of OQ and CC for several guns and matching BV2 guns.
Are you keeping name separate from original quality grade in your thinking? For example, the name Purdey does not invariably associate with best work guns nor does the name Midland invariably associate with low grade guns.
