I agree with Purpledog. Stay away from the airlines. It will suck the fun out of flying.
Unless your goal is to stay at SkyWest for the rest of your career, stay at A-flight until you get at least 1,000 turbine PIC. You cannot predict the future and how long upgrades will be at SkyWest. Right now guys in the left seat have upgraded in about 1.5 years on the Brasilia. For a guy hired today, it might be the same, but it could also be 3-5 years. Depends on how many people leave. Depends on management. Depends on terrorism. Depends on the economy. It just depends on too many things that are completely out of your control.
Get your PIC, then go to SkyWest. You'll have more options than most of your co-workers. Also, a training captain looks awfully good on a resume!
I have just over 19 years 'til I reach age 60 and am forced to retire. My options are very limited right now because I didn't stay at my part 135 airline (now 121) and take the upgrade. I decided to go for the job at the regionals. I left the regional (with 5-year upgrades at the time) for another company because they told me I'd be a captain on a three-holer jet in 1 year. Didn't happen. Plans changed. Bottom line is that I don't have my 1,000 turbine PIC yet! I cannot even apply to FedEx, UPS, Southwest, Alaska, etc... All because I thought I was making the right moves at the time.
I know it is very tempting to make the jump and get to a "real" airline. I just don't want you to make the same mistake that I did and wind up with few options when you get furloughed.
GP