thinking about flipping my professors rims and im just wondering is it safe or not?the rims are 8j but in not sure what the offset is, i flipped one to see what its lik and it seems to have a nice bit of offset on the inside off the rim if ye get me, when its flipped i have nearly hve 4 inchs on the inside to the stud holes and 5 inchs on my new dish which looks nice but dont no weather this is safe on not,could any1 shed light on this? heres the pics before and after,

before.
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after.