@tomthiel, Your entitled your opinion and yours will deservedly carry more weight than mine. I’m not so sure that the 3.6’s are more accurate, perhaps not even more mature. But, while the 3.6’s are more dynamic, play louder and are more suave from the midrange up, the 3.5’s go deeper, have better time and phase coherence, and get more from less costly amplification. You’ve confirmed what I always suspected: that the 3.6’s were rushed to meet cyclical market demands. I was and remain disappointed. I would have guessed the 3.5’s would have been followed with a 4 way sealed box with time compensated bi-wiring keeping the eq out of the upper range. I can understand why some might prefer the 3.6’s, but I’ll go with 3.5’s every time. I think all things considered the 3.5’s were Thiel’s best product. The port made sense for the CS2’s down, but I think it was a mistake that kept being made (except for CS5’s whose amp requirements keep it from being the best Thiel) with the 3.6’s on.
YYMMV. To each his own.
YYMMV. To each his own.