Ric, I wasn’t attempting to make anything personal. After a 14 hour night shift, it’s apparent that I can’t proof-read myself well enough to make sure I don’t sound like a jerk. My apologies.
Most sprinters don’t consider a dual rear brake, as putting a second caliper on the left side often gets in the way of the mount for the torsion bar, and since many don’t have the third bearing tight, placing it there would significantly change the kart’s characteristics. It’s, more often than not, just not a good option.