[63corvette]

Ray, the B&M had the same pressure adjustment you describe. The issue was with the pressure falling off (just a short blip) as you apply the brake. That was a pump pressure/volume issue with the passage size. To make the brake react quickly the volume is reduced in the passages to dump quickly for quick reaction but you have the same issue on the apply side. Applying takes longer that dumping with the port size. You could remedy that issue by going to an after market pump with the larger gear set or using a stock pump/gear set and setting the engine rpm no lower than 1200 to 1400 in low gear as you stage the car. It was just an issue that could bite you at the wrong time as you go rounds and I decided not to build those problems into a transmission I was using or selling a customer.
I build them and I race them so I don't want any possible issue I can get away from. I also do not want a customer with any of those issues either.
Everyone has his or her own way to do things and their opinions but for me I stay away from the aluminum bodies from all the manufacturers if at all possible. All the major transmission people still have the cast body model and that is what I always use. Some of the people I build for want a specific brand of brake. I believe most are all about equal so I give the customer the choice of what they want.
My 2 Cents