I'd posted this link on the last page for dbeasy. it's fairly useful. here's another. probably more descriptive, but the videos seem old and don't account for some reroutes. or maybe I'm just terrible at recognizing stuff. but neither one has Snail Trail on it, which is interesting, because it's been heavily Stravulated. a bit of an open secret.
anyway, I usually start under 183A, hit Snail, then Dave's ditch (IFF it's been dry for a while), 1/4 notch and double-down. if I have the time, I'll do Deception 'backwards'. then Picnic, which has numerous optional drops. no matter what, I do Picnic. if the conditions are such Picnic's unridable, I just don't go to Brushy at all.
for some reason, Deception just doesn't appeal to me, but once I'm on it, it's actually pretty fun. very rocky, moderately techy ups and downs, and lots of cactus to keep you on the straight and narrow. very hot in the summer, whereas Picnic is always comfortably shaded.
Mulligan is fun, but there's a couple little soupy spots for several days after any rain, so I'll just run up the mellower climb on the left of the big slope facing the paved path, hang a right and bomb down the steep one closest to the train tracks, like today.
as I mentioned to dbeasy, really only Mulligan and Peddler's Pass are one way (PP being very well marked in this regard). just depends on where you start. ie, you could certainly make the case that Deception flows generally west, but that's only because the skatepark lot is the most popular starting point.
the route I roughly described above, with PP, is between 8-12 miles, depending on whether I do any Deception or extra Snail repeats. just pulled an old strava record up that's 9.48 mi and a whopping 359' of climbing, with zero Deception.
I tend to do Brushy solo on saturday mornings. if you want a guide, sing out. it don't make a shit.