Dingy....
Sorry mate I think your confused... unless your company (which one was that) deviated from recommended boeing SOP and created your own.
The rejected takeoff drill says nothing of lowering flaps...in fact increasing flaps may even take more weight off the wheels and further inhibit braking.... as you recall at speeds less that 100kts the reverse thrust is less useful than the brakes.
The EVAC drill which is completely separate has the captain lower flaps to 40 to assist with over the wing egress..
Which model 37 are you referring to cause I've flown the classics and the NGs and neither have ever had anything your referring to.
I gotta call BS on your claim - either that or your memory is very incorrect.
WJP