DM2 axle loose help needed

My DM2 axle is really loose. I can live with the little rattle but every once in a while, it will completely let go and my yo falls apart ( pets and kids beware ). I tried seating the axle all the way down on one side- side “A” will seat so deep that I can’t get the other side on with a large bearing(2 threads maybe exposed). Side “B” leaves enough out to get it together but I still get the rattle.

If that makes sense, is there anything I can put on the threads to keep it from being so loose? I was thinking maybe some crayon wax or something.

Also, will the axle being deeper in one side throw off the balance of the yo-yo.

Any suggestions much appreciated. ;D

You need it retapped