Yes, thank you so much!
For those that are not aware, on the F-86, the "pylon" was part of the drop tank and not the wing. This kept the wing clean, but made the droptanks very expensive for what was after all supposed to be a disposable object. This contributed to the chronic shortage of droptanks that plagued F-86 operations during the Korean War, and this arrangement was never tried again. (I once had a thread that gave references for this fact, but it has since been removed).
But, Checkyersix is quite correct, the wing pylon should have NO mass as in reality it never existed!