Excellent advice. Ditto what I would say. Having done it, I got lucky to move to a full time position. The ptsups at my building which I moved to 18 yrs ago, seem to leave when they get a degree.what I always tell new people is that if your only planning on working there for however long it takes you to get a degree and leave then go for it. You will make more money now, but over the longhaul you can make more money staying where you are. The chances of moving up into fulltime management are very slim and a lot of ass kissing is most likely required. I know guys who were part-time sups when I was new, and are still part-time supervisors to this day making a fraction of what I make as a fulltime driver with almost no possibility of advancement.
NO!!!!!!!!!!!!!!
Absolutely try to get promoted! Obviously your supervisor sees that you have management qualities. I have been a pt sup for almost 2 years, and it has been great. It is harder than loading, unloading, or sorting because you will have to figure out how to make hourly employees work for you. I don't think there are any disadvantages. You will be held accountable for your area and your peoples attendance and running the right numbers, but you are getting paid to take on those responsibilities. Plus you will more than likely (if you choose to continue getting promoted) retire a millionaire which sounds good to me.
Once you go PT supv, there's no going back to PT hourly. It's possible to go FT hourly. In some areas it's quicker to go FT driving via PT hourly, in other areas it's quicker to go FT driving via PT supv. But, don't count on going PT supv as a way to get to FT hourly. There's no guarantees for PT supvs.
As far as the original poster, if you plan on graduating college and have a good job on your resume, go PT supv. If the resume isn't that important, stay hourly.