First, I would like to comment on the Makiwra. I don't likethe training because I feel it is too brutal on the knuckles. In think the Chinese Mung bean bag is a much better thing to hit becasue there is a moveable medium spreading the blow out over the entire surface. I belive this also strengthens a greater area than the makiwra does.
Honestly. I remeber the Iron Plam bag Abbate had at the River Grove school, and I feel you are better off hanging that on the wall and hitting that instead, over a Makwira board.
As for Abbate, I know he was trained in some sort of Vietnamiese snake style if I remember right. I was not there long, but the training made a lasting impression on me and I do wish I could have continued.
As for not teaching you the goods, or holding back, I would guess the opposite happened. Forms were originally for the teachers to organise thier curriculem. Learning to fight and use the techniques in the forms were what was originally taught first. Learning the Form Abbate's way meant you REALLY learned the form, even if you never got the final choreography of it.
I don't have any doubt of his authenticity, but I am curious as to his history and all. When I was there we were learning Wing Chun as an intro style from Rocco Lombardo. But it was clear Master Abbate had his own system to teach after that. I would like to know what that system was, and where he learned it. I vaugly remember it came from a Chinese teacher, and was some sort of Veitnamese snake style, but I really don't know the details. I do know Master Tsai came in much later in his carreer, and he was already a top level martial artist by the time Tsai came on the scene.
Last I saw master Abbate, he had been very sick, and had lost a LOT of weight. I hear he is better now though. I am not sure where he is now, but if your history with him is as significant as you say, I would sugjest you find him, and visit.
As for the topic of my post, I am very curious how Ganji fits into this whole thing now. If he is claiming rank in Abbate's system, then how did he get that?