Now I hear George has got Heyboer's for the jtm45 kits and I am wondering how they compare to the Wallace ones. I'm wondering if there is a big difference, such as one is punchier or one has more sag. I'd like some sag (if I wanted pure punch I'd use a regular 50 or 100), but the sound clips on the Wallace page seem to have more sag than I'd like (but I'm sure there's more than the transformer responsible for that).
Anyone have experience with either or both of these sets (in a jtm45 or bluesbreaker) and care to comment on it's effect on the sound/feel?

Eamon