I'm sure that there are different layups of the h22. The stiffer ones are surprisingly stiff and I don't think provide that much spin in the tight pattern but plenty of pop. The flexy one does provide plenty of spin though.
I think the only way you'll get a lot of spin out of a tight pattern racquet in comparison to an open one like the PD is for it to be much more flexible. I have found the PD to provide almost too much spin of occasion, have had difficulty getting it through the court!
My open pattern H22's provide huge amounts of spin due to very open pattern but play stiffer than the 64 flex suggests, nowhere near as forgiving and easy to hit as the open pattern pro stock blade?
I got a couple more h19's this week that are more head light. That is a very solid all round racquet, hard to fault really.