I don't have either, but if I was buying a hard cover, I would probably opt for the Tyger because it looks more slimline and I prefer an OEM look as much as possible. Diamond backs are made for heavy duty, so it looks like they weigh a little more in the back, def looks more secure than Tyger. Also, you're paying for a premium for bed security. If you're just looking for bed security, I would go with the Tyger. Again, I don't have either, but Tyger is similar to a lot of the others out there.