I am getting ready to transfer a high gravity Imperial Stout (1.106) to secondary. I am going to add oak chips in the secondary for about 10 days. I've read all about the differences and pros and cons of chips vs. cubes. Just wondering how many ounces of chips is typical for this style and gravity of beer and length of secondary fermentation (10 days).....2 ounces......4 ounces?
Also, is it best to place the chips in a mesh bag and add some weight (sanitized of course) or just dump the chips right in and let them float around?