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. Here are my reasons however I am not an expert and it is just my opinion:-I also have an account on "the other" autograph collecting website ST and I have seen many people posting success similar to this with the big long R and the general consensus there is a Sec.
-He has been known for a while to send out Secs so his track record is not great TTM.
-I met him in Boulder, CO about a month ago after one of his comedy tour shows (great guy IP) and asked him to sign an 8X10 and a Mrs. Doubtfire DVD. On both the R is clearly Definable and has more "volume" to them where yours feels kind of thin (if that makes any sense
). Also he just signed W scribble for Williams on both whereas your has a legible last name...-I unbeknownst to his TTM track record wrote to him VV at 'The Butler" last year (obtained address through an account I have on a professional website that I get filming addys from) and he signed and inscribed both of my Aladdin Cards and the Signatures look VERY similar to My IPs. The Adam and the "all my best" look almost identical as well as the R and the W scribble so I am 99.99% sure that those are authentic as well.
HOPE THIS HELPS!
Here are scans of the sigs. DVD and Good Will Hunting 8X10 are the IPs and the aladdin card is one of the two TTMs.