ARP Main Studs & Main Bearings Questions

I've had things from ARP that didnt make sense before. The 12pt nuts are for the #5 main cap. The clearance betweent he oil pump casting and stud/nut will need to be checked, and the stud trimmed down to clear everythign and have the pump bolt down right. The windage tray only uses 4 of the special "tray style" main studs. You have 8 smaller nuts because you set the clearance between the tray and the rotating assembly by sandwiching the tray between two nuts on each stud. One upside-down, then the tray, and one right-side up locking it in place. I've had extra nuts, a stud with no threads rolled into it, and missing flat washers before. And dont forget to use the ARP lube on all surfaces.. cap, washer, threads, and main stud nuts to get the right torque reading.