MX4 Bakflip Cover on 2022 tundra with deck rail system help

So ... want an MX4 Bakflip for my 2022 Tundra. Had one on my F150, loved it.

Question on ordering.

They all say work with or without deckrail system (I have deckrail) but then there is a specific model with "T" after it the the guys at 4WP say is the specific one for the deck rail system.
But then I watch a youtube video install of the non T regular version and the brackets have holes in them that the side deck rails screw into so why the T version? Can anyone shed light on this? Thanks in advance.

"T" version:

$1,250 BAKFlip MX4 Hard Folding Truck Tonneau Cover - 448410T

https://www.4wheelparts.com/p/bakflip-mx4-hard-folding-truck-tonneau-cover-448410t/_/R-BKDA-448410T

Reg version:

$1,200 BAKFlip MX4 Hard Folding Truck Tonneau Cover - 448410

https://www.4wheelparts.com/p/bakflip-mx4-hard-folding-truck-tonneau-cover-448410/_/R-BKDA-448410

 

Looking on BAKs website, they don't list the t designation. It also lists a different part number than what you shared from 4WP

https://realtruck.com/p/bakflip-mx4-tonneau-cover/v/toyota/tundra/2022/

I would message @SantanaRealtruck for a good deal on the cover.

 

I just received Revolver last weekend. It is installable on rails or no rails. The weak point of the packaging was instructions. In the box was a set of obsolete instructions referencing a 2nd bracket they never produced. Contacted them to confirm that fact and requested real instructions. Got emailed a set for a Tacoma. Groan. Not rocket science so I will proceed with install based on you tube videos. But the entire engagement left me concerned about any warranty issues I might have and getting stuck in their random disinformation loop of a help desk. So if run into another issue during actual install just going to bundle it up and return it.

Call them. Email responses are much slower.

 

Thanks @DMackler sent santana a pm.
Fatone: agree, lack of instructions combined with mystery parts frustrating !!

 

Same experience here. Instructions I got were way out of date. I also got a roll of weatherstripping that didn’t have a purpose.

 

Asked about the random roll of weather stripping as well. No response