Why choose a spray-on bedliner over a drop-in?

There are several reasons.  Drop-in bedliners do not bond to your truckbed.  They are simply placed over your existing bed.  Drop-ins create gaps that trap water and promote rust.  This depreciates the value of your truck.                     
After applying FMJ the difference is amazing!  The superior adhesion of pure polyurea gives your truck a factory fresh look.

What about the competition? Take a look at their product.