ANYONE EVER USED A GROOVES TOBE GT55 MIC? HOW IS IT? IS IT WAY BETTER THAN A OCTAVA MK-319?

I believe the 55 is the FET version of the tube 66.

I'm still not 100% convinced about my current Blue Baby Bottle, and am looking for alternatives.

A friend's AT4033 had some elements that I preferred to the Baby, in that the 4033 wasn't so boxy, but the 4033 was also too raspy.

I know a few people who rave about GT's. Any diff since Alesis got ahold of them?