Please tell me I didn't just throw out $160.00. I just ordered the Sophia 274B mesh plate for my WA6. Thing is I have a very early WA6 late 2007 I think. From what I'm piecing together here, it may not work correctly do to the first Capacitor after the rectifier needing to be 10uf. I'm wondering if mine is using a higher maybe 20uf. How can I find out? Does anyone here have an early product run, who's using the Sophia 274B Mesh plate? I should have made sure of this before I ordered it on WooAudio's site. The reason I'm suspicious, is because on their tube chart it says the WA6 is not compatible, yet they offer it as an upgrade. This makes me believe they may have changed something along the way. Any input would be great. Thanks.