The current LDA series guns are the only Para's I'd take on trade in the shop. The single action guns have suffered from QC problems over the years and have a very minimal resale value.
Better just to state that we dont accept those Para's than having to lowball somebody on a gun he paid $600 for.
The autonomic nervous system provides for involuntary muscle function - the work of breathing, digestion, and so forth. On some folks, that's a pure waste of ingenuity.