After talking to the person I know I recognized that chin ups cannot work for small/light people for grip very well unless you can go to failure.
What I posted were techniques to go to failure easily especially for those struggling with their fitness and who are heavier.
My grip sucked horribly before I started training so I can't tell you what it was before but I do know it improved a lot.
On the hand dynamometer I held it wrong (I had my thumb on the top instead of the thumb/forefinger arch) but I had scored 50kg per hand. For dead lifts the most I have ever done was 300 but I believe that can be mostly attributed to my leg power.