I'm looking at changing the boot fabric that's in my boot as it keeps sliding around and looks like a mess after I've driven for a while (occasional spirited corner

Has anyone got the hard plastic cargo boot liner:
MZ314011 - Cargo Liner - Hard Plastic

If so how do you find it, are the bumps actually rubber? i.e. how decent is it for grip?
Would I maybe better off buying a generic rubber boot liner and cutting it to size?
Thanks
Nick
