You can't really call them trials. I never set aside a day to compare them all, I'm too lazy for that.
From the heatsinks that I own, my TRUE ties with my HR-01+ with a 1350 RPM 47 CFM Yate Loon. Both lapped including the CPU. I don't think my Xeon E3110 doesn't produce enough heat to take advantage of the TRUE's extra surface area. The NH-U9B I had sat around 3 degrees higher than both of them with the included fan. I didn't lap this heatsink.
Back when I had my E6300, I went from a Zalman 9700 to a TRUE. I lost about 5-7* load from the switch. This was with the Zalman fan controller set at the highest I could take (~50% I think, long time ago) and a Antec Tri-Cool set to medium or a low-speed Yate Loon. I might have used a different fan, I can't remember though.