do you do mostly granular? if so they are both good at that. but the pg is limited at what it can spray bc of no agition. i would go look at both and make your choice then. i went and look at the pg at the local lesco store years ago test drove it then went to a dealer in town that had some z sprays and they are night and day difference in the two in the way they are built...
The Internet lets you be anything you wannabe except smart. Your stupidity will always come out.