crank scraper????

i thought i already posted this question,but i couldnt find it. im buildind a stroker 418, i allready have a milidon 7 qt.pan for a 67 a body, it is already baffled, i have read not to put a windage tray on it, from what 0812 has posted, what about using a crank scaper?? anyone use one?? has anyone seen a increase of power on the dyno??