Jed,

I've used spikes and a Shubb on my Ode Long Neck. Ever torn up a finger tip on a spike? I have. The Shub is just the nutz as far as I'm concerned. Retuning is less of an issue. Obvious ly you need to be careful about location and how you predrill the holes. One of the screws for the capo is an "eye" screw and I use that for a strap anchor.   10 years and no worries.

Don