After reading through this thread, for a street driven car, if you put all the opinions in a blender you come out with the Accusump probably not necessary but certainly can't hurt and may provide some marginal benefit.
Rather than pre-oiling, what do you think of pre-heating the
oil? My engine builder has recommended an
oil pan heater - not the cheesy stick on kind - but one that installs inside the
oil pan through a welded-on bung. Assuming I don't mind plugging the thing in 20 - 30 minutes before driving, and plug it into a cord with a timer in case my CRS kicks in and I plug it in and forget...it seems to me that having warm oil at start, although not pre-oiling, would provide good benefit. Also, since I plan to drive the car in cooler weather it seems this would be a good investment for about $225.