Sorry, I didn’t take the time to look up exactly what those lessons covered but will give you my experiance. for the record I’m not anywhere near being what I call a banjo player.
If I was going to start all over again, I’d do things much different. I’m myself going back to the begining. I learnt my rolls and then jumped into songs. I did not nor do I have the music basics down for which I’m going back to get. I was all bent on learning some songs to play much like most I’m sure. Yes, I can play BlackBerry Blossom, Jed Clampet, etc and a fairly good speed but don’t the basis of the songs, ie chord structure etc.
I just started playing with some people that have, what most would call a weird band to play with. They are all older and play at nursing homes etc. They play old tunes, no Bluegrass. So, one; I stick out like a sore thumb to begin with. I may know a song like Will the Circle Be Unbroken, but, I play it in A (capo’d at 2nd), they yell out to play it in C…so, do I move my Capo and just go with it, or do I try and learn the theory of it and how to play without the capo. On BHO (another banjo site) I asked the question about theory. Best advice I got was to learn my chord shapes, (Ben calls them Y and X postions) all up and down the neck. Find out, from that shape, what makes a Minor or 7th chord. This way, all I’d have to do is watch some playing Mr. Bojangles in F (I learnt it in G) and play along with the same chords they are using. Not there yet, but I’m working on it.
Ben has some great vids on this, which I found theory , basics etc to be boring. I’m now going back to watch them, over n over N OVER N OVER again to get the base I should have taken the time to get before.
I will add, as soon as you can find some good hearted people out there to jam with, DO IT! If you can chord, know how to get from here to there, playing with others is very helpful. You do need people that are patient and will help you. Group I found are just that. I play quietly in the background as to not mess them up and they always have some great advice even though no one plays the banjer.
Best of luck pickin.