Stroked motor oil levels?

I might be thinking too hard. How is the correct oil level determined by manufacturers? If you have a motor with a 3.750 in. stroke (stock) vs 4.250 in. stroke it seems that the oil level would need to be different. I have searched but cannot find any info except to run a larger oil pan and a windage tray. Since I have my pan out now and will be installing a windage tray tomorrow, I wanted to measure the proper level on my aftermarket dipstick. Measure twice....

Is the correct level relative to the stroke of the crankshaft, the crankshaft weights, the windage tray, the bottom to the block? There must be some guidelines beside just the dipstick. Differing setups should be different, shouldn't they?

Street car that will see some track time next year. 7 QT capacity pan with pickup just off the floor of the pan.