So I finally managed to get my group out of Baldur's Gate last session. I ran the Stranded encounter for them, and even though I added four worgs to the encounter, it was still way too easy. Partly because they now have quite a few hit points at 5th level, but mainly because the wizard decimated the hobgoblins' ranks with two fireballs, while the druid tore up the worgs with two conjured brown bears. Yes, if they'd had another encounter that same day, they'd have been in more trouble, but that doesn't seem to be the way things work in this section of the adventure.
Anyway, it wasn't that big a deal that it was easy. I took the opportunity to explain that everyone seemed quite impressed with the PCs' handiwork, and they all got treated to free drinks from Beyd's mobile tavern.
But that's got me thinking about some of the other road encounters. Like the No Room at the Inn encounter. I think four assassins might still be too much, even for 5th level PCs, but what about 1 green slaad (also CR 8) plus some minions? I'm not sure what I'd use for them. Maybe veterans? If the battle proves to be too tough, some of the NPC guards can always come to the PCs' aid.
I'm also thinking about the Golden Stag encounter. I really like it, but I'm wondering whether it might be more fun to run it as a chase scene, rather than having three basic Survival checks. In fact, it could be a three-horse race, as it were, with the PCs trying to stop some of the NPCs from killing the stag.
In terms of chase mechanics, I prefer the alternate rules published in DDEX2-10 Cloaks and Shadows to the ones in the DMG, although I can still use the wilderness chase table in the DMG, just with minor modifications. I can post the results here, if anyone's interested.