the guys on the .com site where talking about this some time ago, with the bad effects it was having on fuel systems,,
one fella had installed water traps to his fuel lines and most of his probs went away,
I remember yrs ago with the red motors in the our cars,we used to put a cup of metho in the tanks in winter to keep condensation down to nill,, the metho soaked up the water ,and then burnt with the fuel,
seeing as that is one of the big things with e10, the absorbing moisture , pretty much the same as brake fluid ,with the same result as brake lines and cylinders, getting the deposit along the lines,
I wonder if a metho to fuel ratio could be worked on to do the same as yrs ago,and maybe take at least that negative part out of e10