Jeff does not make frequent or frivolous modifications. In my experience every time he comes up with something new it results in a worthwhile improvement. I am quite confident you will not be disappointed.
Factory Teflon Cap upgrade for Conrad Johnson Premier Five
Does anyone have any experience with the factory Teflon Cap upgrade for the Premier Five Monoblock? It is pricey, and shipping those heavy dreadnoughts cross-country with insurance is not cheap either. I don't have anyway to listen to the mod here in CA, as my local CJ dealer has no experience with the mod. On the other hand, it is tempting.