Well, the good thing with that workout is that the progress is very easy to see as it happens. You never really had a stagnant week other than the last bench. I would say you made great progress throughout. Remember the closer to your potential you get the harder the gains. However your potential is going to increase during your deload so you can work back up to that newer level. I read somewhere that adding 1 rep to a set done between 70-80& 1RM set is pretty close to adding 5lbs to a lift. So if you consider it like that then you were making nice progress at least adding 1 rep to each workout for the most part.
Either way the program seemed to suit you and you spent less time in pain or it seemed that way to me.