I gave myself a 1, but only because there is not a fractional option.
I ave never had a homosexual impulse, and don't expect to, but I am not utterly revolted by people of my own gender, so I resist saying ZERO.
I can see that some men are attractive to ther men, but using Gilda's definitions I would say that there is "not enough to act on".
EDIT: Took the Southampton Klein test and scored 0.48