Yeah, I have nothing against carbon posts, will likely pick one when it comes time to fill out the cockpit.
That FSA post has a similar head to the one I got. To be honest, my dislike for this style of head comes from a Kalloy setback post that came on my old Giant XC hardtail - I'm pretty sure I had a hard landing and the bolt sheared off. Maybe less of an issue now that I'm on the road, though I'm probably about 25-30 lbs more than I was in high school, too...
The FSA alloy post is still useful in other ways though, even if it won't make it into the final build - can probably clamp that in the stand as hard as I'd like without risk of crimping/crushing it...