In the bad old bare-knuckle days our instructor (a 10th degree Black Belt Grandmaster of Isshinryu Karate who knows lots of other arts) would hang out in his office until folks had a good hard workout, then come out and show a lengthy piece of a form to the entire class JUST ONCE. Then he would go back in his office and shut the door. Do or die, everyone cooperated in making sure they got it down. And folks took written notes so they would not forget (I recommend the clock system -- you start facing 12:00 in a ready stance with your hands at your sides, eyes forward ....). It was very efficient of his time, the most valuable commodity in the school.
Now, 25 or 30 years later, he will show a student a short, standard sequence of a form pretty much 3 times and that's it, leave him to practice it for twenty minutes. When an instructor reviews the student's form, our marching orders are to watch a student's form from start to whatever comes first, the end or the first error, and fix just the first mistake. If it is perfect and a week later, we show the next sequence. One sequence per week if no mistakes. I teach kids generally so if something is just sloppy, I will clean it up and not treat it as a full error if they otherwise have the structure (don't want to discourage them from attending classes -- we just hold back the promotions until they know the stuff). At most we show someone a sequence about five or six times, preferably with them doing it with the instructor by the end, because we have to share our time with the other students in the class. I try to go back at the end of class and take a look. This holds true whether I am teaching a beginner or a Black Belt.
What's the reason for my boss's change of style? 30 years ago all he cared about was creating street monsters and national champions, so it was a small dedicated crew. Today he wants to help as many folks as possible, which means he no longer is indifferent to discouraging the majority of them.
However, in my experience everyone learns at a different pace. Some of our more dedicated Black Belts will interrupt me and say "that's it, no more" when I am showing them a weapons form at a point prior to the natural length of the sequence. As rude as it is, I recall doing this once with my boss, too (and he looked at me like I was dumb but cut the lesson off there). These martial artists do not mind progressing slowly, just want to get it right.
There is no reason why you have to swallow the entire taped lesson at one sitting. You can learn just a half of it or a third, and take up the rest in a few days or a week. I will repeat watching the same sequence dozens of times, practice it, and go back to the tape often so in that sense it is better than being in a class except no one gives you feedback. (I used the taped series to fill out the rest of my Hung Gar forms ... stuff I did not learn in a school .... and to conform them all to one style). Also, you can make frequent use of slow motion tape play, something I found necessary in certain places. Admittedly throughout the 39 tapes of Hung Gar there are a few places where you just cannot see what is happening (in some of those a different form has the same move so you can figure it out from a better angle shot, in some not), but there is no reason why you should let yourself feel overwhelmed by a tape THAT YOU CONTROL!
The basic Hung Gar fist is pretty standard for most styles of Kung Fu, Tae Kwan Do and Karate, so if you are still having problems, you don't need a Hung Gar practitioner to get it down right, just a competent martial artist (and probably a bag, preferably soft to start, then hard -- and bag gloves...)
Before you take weapons to a public place, better check the local laws. And do not rip the bark off public trees with your tiger claw practice, it ain't your tree so that's vandalism. A staff will probably be ok but a bladed weapon is pretty much an invitation to trouble.
And remember -- martial arts are more mental than physical.
Good luck in your training.
The first four names on the guest list were the Riders of the Apocolypse, and the party just went down hill from there.