Well I guess I'm convinced - I cannot vote for any Republican that doesn't tow the line 100% (Q: who decides the line?). In fact any candidate that has supporters that don't tow the same line 100% I also cannot vote for.
IF you really want to throw the purists into a tailspin, announce that you are pro-choice, pro-gay-marriage, and pro-gun-control, and that you are sending checks to Hunter, Tancredo, and Gingrich.