The water at Aquatic Park Berkeley is brackish and has a lot of salt in it but I think it is the toxic mud that makes discs less stable when they come out.
So much so that we have talked about planting discs out in the lake and leaving them in the mud to "break in".
The sulfury mud makes the disc smell really bad for a while but it goes away after a few weeks outside the house.
Destroyer,Sidewinder,Firebird,Eagles,Leopard, Roc, Mako, S Wizard.
Sometimes I wonder why that Frisbee is getting bigger then it hits me.