Andy , i used to own a well spec’d pitch pro until it was stolen the day before a trip to the lakes . I ended hiring a very nice hustler @ grizedale and can give you a good comparison , oh and i’m about the same weight .
Yes the pitch is much more of a bomber bike but can still be built/ridden well , mine had hope hoops , revelation 150 air forks and was at the point of being a much better climber than it used to be .
The hustler felt odd to start with being a touch shorter but one thing i did notice straight away was how much stiffer it was ! After about 20 mins i really started having fun on it and could climb pretty well compared to the pitch , it felt pretty darn good descending too .
My friend used to have a 575 and i had a ride on it ( well around car park / down a track ) i think the geometry felt a bit steeper upfront and had that ‘sitting on ‘ feeling . Not my cup of tea but obviously not the best test for it ! I would have gone for a hustler with my insurance money but i got an ’11 enduro for the same price as a new pitch 🙂