Ahh the so called tranny chasers  To be honest I dont think a whole lot has been written about them at all  I know of some studies which look at the way HIV is transmitted among MSMs which look at the men who have sex with transsexuals  Then there are the writtings of Ray Blanchard with refer to such men as gynandromoprhphiles  Or some such  But either of those things would be controversial  They also ammount to one or two papers  Interesting question hope someone looks at it eventually