Hmm, I understand the sentiment but I'm not entirely sure Gigue could dive under the axe-throw. If he mistimed his leap it's unlikely Sigurd would still be throwing into thin-air, so he must have waited until the axe left Sigurd's hand (which gave him what, half a second?) To clear his pretty large body out the way of an axe-throw aimed at his centre, so not particularly high on his body either. If Sigurd had just been stepping forward and drawing his sword he'd be more than a little fucked, but the axe-throw to my mind would still pose a significant threat to Gigue even if he did leap forward into a dive.
I'll have another few reads before I reserve any judgement, but I'm not entirely sure the axe-throw would be nullified.
Not saying the axe-throw would change very much, by all accounts it would probably bounce hilt-first off his mask if he dived forward straight into it, but I can't see it flying over-head considering the range and whatnot. As Sigurd aimed dead-centre for this exact sort of reason (not going to pretend I or he guessed Gigue would dive towards him, but he certainly expected some form of evasion) the axe would be probably hurtling towards his lower abdomen, about three and a half feet up his body at any rate, which would leave Gigue having to clear half his body in the time it took the axe to reach him, no easy feat.
What's your take on my reservations?