9BASE3

Anyone here using... or have used this may be able to help. Just wondering about the ups and downs of using the Manual vent learn setting. I am currently using the setting set to yes, and occasionally have to raise the vent values to get back the desired boost. Is this cuz' I don't drive hard much? If I turn the manual vent setting off, will I be risking anything? About to go Non Seq, and wonder what I should do. Thanks 4 the help (since no other forum..hint...hint...would recognize my measly 130 posts....)