Herbie's Hal-O tube dampener's on Calypso?

I ordered four Hal-O's today.
Will report my finding's after this next weekend for anyone interested...

JD, that's promising info as a buddie of mine just told me he always felt they made the sound more closed in. But, I wanted to try them for myself. Should I just slap on all four, or do either the gain or output stage first? Any recommendation on that? Or positioning the dampner on the tube? Supposedly, even that can make a difference.

Jafox, why you no go with Herbie's?

I wish I could change my moniker...

Unfortunately, I just haven't had much time to sit down for critical listening under what I consider "proper" conditions. That's not to say that I haven't done any listening. With that being said, I haven't noticed any detrimental effects of the Hal-O's that have made me want to pull them off the pre. I installed them all the way at the top of the tubes and perhaps I will play with placement a bit in the coming weeks. I don't listen to music during the week, so hopefully I will get plenty of hi-fi time this coming weekend...