I don't have any pics, but Diamond has a nice W5 dome profile for doing large domes. I've had a couple sets made over the years.

Only couple W5 motors ever ran in NASCAR Truck, I think they were running flat tops, I had a couple sets of Bob Keselowski's W5/7 JE's at one time & sold them somewhere along the line. Fairly positive they were FTs, maybe a small small like .050" flat dome? Don't remember.