Also, this works real well with Reyes gloves. If you notice, they have a longer cuff. Well, all that goes into the weight of the glove. An 18 oz glove doesn't mean 18 oz of padding over the knuckles. With Reyes, a lot of the weight is in the cuff and on the back of the hand, relatively light over the part where punches land; this is why they are known as punchers gloves.
What you are doing with all that tape, you are skinning it back, pushing the padding back and taping it down, because it moves, and you want your punches to land with as much of that heavily taped and tightly wrapped fist getting through as possible.
In the old days they wrapped hands with packing tape and fought with 4 oz gloves and it is a miracle (and a testament to defensive skill) that anybody survived.