@m2m: I am still chewing on the advice you posted, so please add more if you're inclined. Please forgive me if I seem pedantic to you. Maybe you know we're going way too deep into it because you've gone this deep before, but I haven't ever really thought about this; I've just kind of built up an intuitive sense of it.

@ seven-deuce: set mining w/o a PP..?!? :mind blown:
That got me thinking, and looking through some odds tables.

With ATC (no PP), the odds of catching a hand (2 pair or better) on the flop are:
2 pair: 2.02% + set: 1.35% + boat: 0.09% + quads: 0.01% :: total: 3.47%

Adding in the chance to flop a flush with any suited pocket (0.84%) brings the base to:
total: 4.31%

for SC, 4.31% + 1.31% to flop a straight :: total: 5.62% odds: 16.8:1

for S1G, 4.31% + 0.98% to flop a straight :: total 5.29% odds: 17.9:1

for S2G, 4.31% + 0.65% to flop a straight :: total 4.96% odds: 19.2:1

*note: this excludes all draws (I'm considering a single pair to be a drawing hand)