Well, the 299C has 7591 outputs, doesn't it? If so, then I'd say the HF-81. If not, then the Scott. Both share the challenge of somewhat

over-stressed (i.e., under-spec'd) power transformers. I think Heyboer can do replacements for both (I
know they can for the HF-81). The Scott definitely is the more attractivee

The phono section in the Scott is doubtless better; I just use a nice, modern outboard phono preamp with my HF-81.
I've got a Sherwood S-5500II (?) in the basement; one of the PP 7591 amps. It definitely sounds good, but I've
never set it up for critical listening.
I have two Scott 222Cs (well,
three on site at the moment, 'cause I
still need to rehab Birddogs!) and an LK-72. I really cannot say too much about them, though, because the 222Cs don't work (one almost certainly has a bad PT) and the LK-72 has low output in one preamp channel. Birddog's 222C, which is absolutely beautiful, has low output in one phono channel. I definitely have a sense that, at this late date, the Scott gear needs more to get it going than EICO or Sherwood equipment of the same vintage. That may or may not be significant.