Looking for bed extender that works with Lomax bed cover.

I've got a Lomax bed cover on order for my 2021 TRD OR but hoping you guys could give me feedback on if bed extenders will fit and clear the rails. Neither Lomax or the dealer can confirm fitment.

 

I have the oem extender and it works fine with my bed cover

 

You got the Lomax cover?

 

I run the OEM extender with a Lomax bed cover. Works fine.

I even also have the OEM bed mat which raises the bed floor a bit.

 

I've also got the bed mat, did you raise the mounting brackets at all to compensate for the mat thickness?

If I get the OEM extender I'd like to get the old style with the rounded corners versus the new triangle shaped one but having a tough time figuring out if they're both options for a 2021 or not. A lot of web sites selling them interchange the pictures of the 2 models.