Make a torflow option that starts every testing circuit at a local Tor relay first
In the future we want to be able to turn on throttling at the entry guards (#9368 (moved)). The main impediment is that the bwauths would then get throttled because they're not relays (#9369 (moved)).
weasel suggests an alternate approach would be for his bwauth Tor client to make its first hop to tor26.
(Then we could add a feature to tor26 to not throttle -- or heck, maybe we don't/shouldn't throttle connections from localhost or equivalent by default. In any case this ticket is for the torflow changes, which historically require more effort and time since we have no torflow people.)
You might say "but wait, having the bwauths not go through the authorities is good, because the vantage points are anonymous so they're harder to game!" But if we're turning the bwauths into relays they're not going to do so well at anonymity anyway.