unsupported punching and the supported kinetic punch

Heres a very nice example of a boxing style MMA punch,you can see how the hes hitting with the outside part of the middle knuckle.this is an unsupported punch the forearm isnt directly behind it to drive it in,this brteaks the kinetic chain at the shoulder and forearm, losing a significant amout of power
patricky freire punch gif

you can see here in this pic of the gif were the point of the knuckle is landing on the outside three knuckles,this breaks the kinetic chain and is unsupported by the forearm,and what I would call an unsupported or clasic boxing punch.

for a supported or Kinetic punch,you have to use the inside of the middle knuckle,this part of the knuckle is unavailable in boxing gloves but is in MMA gloves,which means it cant be practiced in standard boxing gloves.but is a significant step up in power for MMA