Hi AJ,
> Under *any* other circumstance, when they're used to activate a bad soft
fork, speedy trial and bip8 are the same. If a resistance method works
against bip8, it works against speedy trial; if it fails against speedy
trial, it fails against bip8.
IIRC one essential difference between ST (which is a variant of BIP9) and BIP8 is that since there is no mandatory signaling during the lockin period, you can't do a counter soft fork as easily. This is one of the points that Luke mentioned to me that made clear the benefits of the mandatory signaling. A variant of ST that does require mandatory signaling may actually be something that can improve the process and give users a more effective means of forking away from SF changes that they reject.
Keagan