I imagine a Rawson buiold of a Pass circuit would sound pretty similar to a First Watt version, since I don't get the sense they are hard to make, only hard to create the circuit concept - so it proabably would be a lower cost way of enjoying the fruits Nelson Pass' work. My problem with buying the Rawson gear would be if it were in violation of Nelson's conditions for making the designs available to the DIY community in the first place, very generous in itself, and willingly as long a people don't use his intellectual property for commercial gain. NP is a genius circuit designer and the value of a Pass product and his sharing his "experiments" is of great value to the DIY and design community. If Rawson's clones jeopardize that participation by Nelson Pass that I would not support the Rawson product - it seems to violate the spirit of NP's "gift" to the DIY builders. Does it cost Pass sales of his First Watt products? Proabably not much, but not really the point.