Your plants look great man! It's been cool following your thread, and I like what you've done with the Stealth Cab! Anyways, try to get an LED scope so you can check out the trichomes close up...that's the only real way to tell. Research your strain as well and check out the regular flowering time and such. An LED scope is necessary though, you gotta harvest it just at the right time. Most mids (or high end mids) you see on the street (excluding mexican brick) had potential to be dank, but the grower harvested it at the wrong time and/or cured the buds wrong! No joke. You're on the right track so far, so keep it up! Buy an LED scope, wait till about 1/3 of the trichomes are a milky white and/or amber color, then chop those babies down! Hang them to dry until most of the moisture on the outside is gone. Then, dry them in mason jars and "burp" (let the air out by opening the jar) them frequently throughout the day. Also, store them in a cold dark place, but not too cold, just cool. Then, wait till they look like dank buds and smoke 'em! Curing is such an important part of the process, it'd be a shame to mess it up, but you'd be surprised how many people do! Keep it up man!
-Wes