I know when I first got HWS (before it dropped in price) Play was a nightmare on a Mac and I could not even get close to running all the instruments. Eventually I got a PC Slave and VEP and as well as Play updates improving memory handling got a table setup. For me setting up a template with them was educational, there are so many articulations some of which I had not encountered before such as Martele and Ricochet. Then there are the many hidden tricks that unless you read the manual all the way through dont know eg: 1. Some instruments use the modwheel for Vibrato and Dynamics meaning lower dynamics use less vibrato. 2. Legatos have many options, attack, type of slur, vibrato, dynamics (its why they are so memory intensive). One of the key facts even considering how old it is (2010), Sustains/Legato have 13 sample layers I think, 6 for Vibrato, 7 for Dynamics (compare that to many newer Kontakt libraries that often use only 2-3). Initially I was very disappointed at how it ran. It took a lot of system tweaking to get it running well. Yes it has some inconsistencies and the Ambient/Far mics are almost pointless as the room it is recorded in almost has none (my main gripe). But its still a beast of a library.