I ran SAW's for over 10 yrs on my last trk....never a leak or any issue and that trk was driven hard enough the rear shocks got so hot after a whoop section you couldn't touch them. They blew away the factory shocks, and for that application they added about 2" more front travel with aftermarket upper arms...I was very pleased with them...
Those shocks had different valving then what came from Sway Away...the vendor had done extensive R&D and came up with a better valving package then comes from Sway Away....
The question isn't if the SAW's are good, the question is the valving better then stock?
Remember - Valving is King!