Hi. I'm new to the forum and I have a question.
I have a 4 year old IG that needs more leash manners. He's been through a Petsmart class (which I don't think he learned much more from than he already knew) when he was about a year. The main thing he learned from the class was that it's ok to sit on a tile floor, if that gives you any idea how sensitive (and neurotic

) he is. Prior to taking him to this class I had clicker trained his basic commands at home, but every new surface took him like a month of working with him to even get him to do the command (I don't think he actually sat on concrete till he was a year old.....I tried to out wait him, that dog can stand for hours....) Anyway because he still wants to dart up to strangers and around to sniff things on leash, I was looking for another training class for him. I tried the clicker to remedy this behavior as before, but I just can't find anything more rewarding to him than getting to his goal. He isn't interested in treats, no matter how yummy, I could wave any toy right in front of his face, I could do kartwheels, it still would not get his attention. So I found another place that offered classes....I missed the first lesson but showed up to the doggie socialization hour the trainer runs, met him, seemed like a nice guy, didn't really ask too many questions about the class because it said online it stressed the importance of positive reinforcement.
So I show up to the next class and the trainer has all the dogs fitted with prong collars from the start

He put the collar around my arm and let me feel it and stuff, but I still don't know about this......I've tried it on him for a couple of days and he doesn't pull on it, but I just feel so guilty. The trainer said that if it rubbed his neck too much we could switch it out (I'm assuming wrap it with cloth from what i've read online) and if it just didn't work for him we could do something else, but he said he had such good results with it that he was using it pretty much on all his dogs now..........So I decided I'd give it a try. Is this a terrible thing to do?
We started working on heeling with an automatic sit (ie push on butt pull up on collar for sit) He does not like to have his butt pushed down, and the trainer observed this and said, well he already knows how to sit, so just ask him and don't do that part. But then he wants us to gently pull up on the collar while we massage down their back to get them to learn that "energy up the collar means energy down the butt." and pulling up on the collar will be a correction for the sit/stay. Well, after about the 4th time I did this practicing with him the next day every time I reach for his collar he gets out of the sit position. I don't want him to unlearn sit because he doesn't like what I'm doing.......The trainer is going to be out of town next week so it will be 2 weeks till our next class......
I don't know whether I should just ditch this class and find something I'm more comfortable with or give this a try because what I've been doing before isn't working.
Sorry for the incredibly long post but I'm so confused!