Pullups at Gym 10x10

10 sets of 10 pullups on the gravitron
10 x 40 lbs counter weight
10 x 50 lbs
10 x 60 lbs (too easy)
10 x 50 lbs (9 in a row + 1 more)
10 x 50lbs (10 in a row)
10 x 50lbs (10 in a row)
10 x 50lbs (10 in a row)
10 x 50lbs (10 in a row)
10 x 50lbs (10 in a row)
10 x 50lbs (10 in a row)

After first 5 sets, this got much easier. focused on more explosive movement than slowly pulling up and letting down.