I believe some states will not allow payment for plasma donation, but I could be wrong.
I used two different companies in Dallas about three years ago. One was CSL and I can't remember the other.
One was on a bus line and the employees said that there was always a line in the morning with shady people coming to donate. Sometimes you would have to wait 45 minutes and then the blood drawing would take another 45 minutes or more depending on how thick your blood was and how good the needle stick was. Some people took more or less time.
They also had an armed guard in the center at all times.
I agree that all the phlebotomists were trained on the job. Some were good and others terrible. I once had two of them try both arms without success. They blamed it on my "funny veins" not their lack of expertise. They told me I couldn't sell for three days after that so I lost my payments, since I would only get paid the first donation of the week amount.
When you donate blood at blood drives, the phlebotomists are usually working for the Red Cross or a medical facility.
They use a large gauge needle in order to send the red blood cells back into you without damage along with an anti-clotting solution. And I too have tracks, but you have to look for them.
The amount you get paid depends on how much you can sell. The amount you can sell depends on how much you weigh.
I got paid by the visit but it was always more for the second donation of the week, like $20 - $45. Then if you made 8 donations a month you would get a bonus payment of some sort.
Every time you donated you had to answer questions on a touch screen. Recent tattoos, drug use and piercings can disqualify you. I've always wondered how many people lied when they answered these questions just so they could sell their plasma and get paid.
Another interesting note is that most of the employees knew the donors from the neighborhood or high school or somewhere.