I actually figured out a way to change your Player Weight, i already posted it on CE Forum days ago, so here u go:
1: Open CE, open process 2k15.exe
2: Set "Value Type" Array of Byte
3: Remove the checkmark on "Hex"
4: On 2k15 go to Attribute Update Table > Inside Scorer
5: Example: If Standing Layup maxed out it should be 95, to get the Array of Byte for CE use this: 95-25x3=210, if its (Example) > 64 = 64-25x3=117
Example: Check the Picture!

6: If you figured it out correctly click "First Scan" on CE
7: There should be around 20+ Adresses, on 2k15 got to your Playercard > Attribute and look for Standing Layup.
8: On CE go to the Green Adresses, forget about the White ones. Now to figure out your Player Adress Double click on a green Adress, and change the first Byte on Value to 222. 222 = 99 Ingame
Go to your Player Card, and check if Standing Layup changed to 99, if not try the next "Green"Adress.
9: Ones you figured out the right Adress double click on it and save it.
Now use this tabel i made. Check Download below!
https://mega.co.nz/#!llxEBYAK!8nt17ggrG ... PJAUIClE4E10: Open the table and go to Standing Layup, right click on it and click "Recalculate Adress" now use the adress u figured out for your Player.
All the Values will change, and u can finally edit them all, including Weight =D
Hope it was Helpfull, and sry for my English.