Are you supposed to hit a bag with 16oz gloves? We use bag mits for heavy bag training, and only 16oz gloves when doing Vale Tudo training.
Also, I don't think the wrist weights will help your technique.
If you improve technique, speed and power will come. No doubt.
If you want to lift weights, do exercises that will strengthen your triceps, and your lats. ALSO, TRAIN YOUR LEGS AND HIPS! LEGS AND HIPS ARE VERY IMPORTANT FOR PUNCHING.
Also, I don't think the wrist weights will help your technique.
If you improve technique, speed and power will come. No doubt.
If you want to lift weights, do exercises that will strengthen your triceps, and your lats. ALSO, TRAIN YOUR LEGS AND HIPS! LEGS AND HIPS ARE VERY IMPORTANT FOR PUNCHING.