I am making one white and one chocolate cake and I am subbing butter for the oil and whole milk for the water and extra eggs. I am ok with all that, but do you think adding boxed pudding would make the cake even better or should I leave it out? Each cake is in a 12 x 18 pan, so I am using three boxed mixes for each pan. If I were to add pudding, that wouldn’t make a considerable difference to the height of my cake with too much batter would it? Thank you in advance 