Im in the 70's on imbuing and I was following the guide to imbue as close to %50 success as possible. So im doing daggers hit dispel, I start doing the max 1 and 1 ingredients %8 hit dispel and im in the %80 success area. So I do a little test against %50 and 2 and 4 ingredients to see which gets better gains for the total ingredients used 150 residue 300 amber %24 hit dispel 2 residue 4 amber .7 total gains. 150 residue 150 amber %8 hit dispel 1 reside 1 amber 1.0 total gains so maxing % will result in probally better total gains and less ingredients used. Obviously I will still have to switch to 1 residue 2 amber soon but I would max each level before moving up.