A ton of spray can be problematic.
Try flipping your glass over to rule out the glass as the cause.
Verify that there isn't a clod spot on the bed and that there isn't a draft in that area of the platform.
Also it always helps to squish the first layer as much as possible.
The problem may not be related to the bed at all and could be the result of a bent rod or something else that is out of calibration. If you set the nozzle so it just touches the glass on one side it should be that way everywhere on the glass. If it's not you have a bent rod.
Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions