Ultimately, if you are MFing, there is rarely a reason to use an even number setting. The only difference between an even number and the number one lower is slightly more exp, but only one-for-one with the increased HP. So your drops per HP are lower and exp per HP is the same. For fast levelling, when all you care about is the most exp per monster you can get, p8 is still worthwhile.
=Item type selection=
coming soon...