stock or not leaf springs

I was going to try flipping the front mount but won't that add positive angle to the pinion angle? It would seem to me it would cause some upward rotation on the differential. Now it might not matter if the angle of the driveshaft-pinion is still ok.

My concern is with the SS springs on the pinion has a positive angle instead of negative. I don't know what is was before with the stock springs unless I put them back on and measure it. I could try the flipping it and see what happens, as someone here said, "it's free, try it".