Well, everyone is entitled to an opinion, but the facts were:
1) Before matching the Mosfets for Vgs(th), I had included the source resistors only as a means of equalizing currents, and I was measuring something like 50% current difference between them. (If one was conducting let's say, 1 amp, the other would conduct 1.5 amps).
2) Although the circuit was working apparently well, I decided to reduce the conduction difference further. When I performed the Vgs(th) matching the difference was reduced to about 10%. So matching did work.
3) Now Audioguru does have a point...Vgs(th) is usually measured at low drain currents, in the milliamp range. If this measurement were to be taken at drain currents closer to the actual operating currents, I believe that the difference could be brought further down.