Nathan -
1. When the engine
oil system has more pressure than the
oil in the Accusump,
oil flows into the Accusump until the pressures are equalized. When the engine oil system pressure drops, oil under pressure from the Accusump is forced back into the system. If you rev your engine so the oil pressure in the system AND the Accusump is 55 PSI, and then let it drop back to idle, it will take a while before all the higher pressure oil in the Accusump forces its way back into the engine. During that time, your oil pressure will read higher than it did before you installed the Accusump.
2. I too had a problem with an oil leak from an AN fitting that I thought was tight enough. A little extra torque solved the problem. .. It never occured to me to get under the car while it was running. I just cleaned all the fittings, ran the engine for a few minutes, shut it off, and checked to see which fitting was oily.
Good luck.