I'm not an experienced teacher but in my opinion, it's not really possible to learn to play the DB without some private, in-person, one-on-one instruction. It might be worth your while to get a more experienced opinion and post your question on Lynn Seaton's forum. If anyone knows, Lynn's tenure as the jazz bass professor at UNT for the past 20 years is probably one of the best educated opinions available, and Lynn isn't a traditionalist on technique, I've found him very open minded about technique and pedagogy.
I emailed Mr. Seaton and he was very forthcoming; he unfortunately doesn't know of a proper instructor down my way, but I did get to ask him some questions about his Summer Bass Workshop at UNT. The first question I asked him was if it was appropriate for a guy in his 40's who knows he's doing everything wrong on the DB to take his workshop since the majority of the participants (at least from the pictures) appear to be school-aged/college-aged kids. He replied and said he had several participants in their 40's, with the oldest being in his 70's, and that he would look forward to seeing me there next year. I just have to find a way to get off of work for that week because I would love to go!.
Keith, like you, I wanted to learn how to bow, after 40 years of being a self-taught pizz player.
What I did was find a professor of bass at University of Missouri-St. Louis and ask her if she would give me private lessons. Very approachable, very reasonable ($), and good. She is the ONLY professor of bass in the state university system, but she was able to teach me once a week during the summer.
When the fall term began, she could only teach on weekends, so I enrolled in a "community music" program at Webster U. here, where you get a set number of private lessons for a set amount of money.
See if you can find a professor at A&M and ask for private lessons.
I could not have learned so much so quickly from online instruction or books. There is no substitute for having someone look at you and tell you what you're doing wrong (or right).
I did a bit more research and actually spoke with my daughter's music teacher and she referred me to a professor of music from Del Mar College, who plays with the Corpus Christi Symphony. She's a cellist by trade, but also plays the Double Bass, and is well-qualified to teach me how to use a bow. I'm going to have to purchase a good starter bow. When I got my old Kay Bass, I didn't realize that there was actually a bow in the quiver on the vinyl zip case and I unfortunately sat on it and broke it. I wonder sometimes had that bow not broken, would it have changed my playing any? Anyway, I've sent her an email and am hoping to hear back from her soon.
It took me a year to be comfortable with the instrument. Got a lot of help from here, from Geoff's Discover Double Bass beginner's course and youtube. But a teacher is, in my opinion, mandatory, if you are serious about the instrument. Too many nuances, too many bad technique details you get from not having someone explaining it to you face to face, with a double bass in between, watching and correcting you on the spot.
I've heard great things about Discover Double Bass, and may take some time to check those out. I'm in the process of contacting a teacher (see above) and am hoping to get started with her for lessons if her schedule allows. I've been reading some of the forums on Talkbass and I know I must be doing everything wrong because I've always used all four fingers on my left hand, as well as three fingers on my right hand, and I've never had an issue at all. Apparently this is incorrect, but I can pluck the hell out of 16th and 32nd notes with my right hand, and can even get a decent Iron Maiden gallup going with it and not freeze up. Maybe this is just a holdover from my electric bass days (Gibson Thunderbird), which I still play for the surf music we do and for some of the obscure British blues my guitarist really loves to play. I am anxious to have that first lesson where everyone finds out that he or she knows nothing.
Thank you for all of your shared experiences and knowledge. For a guy who's rekindled his passion for the bass after a self-imposed hiatus of live performance for over a decade to raise a family, Talkbass.com is an amazing place with all of the knowledge of the members on this forum. For that I'm truly grateful.