Who's used an AllParts SRO FAT or SRO-21?

...And what'd ya think? I'm pretty sure this is what's going on my new '61 Sonic Blue project, but not really sure which would be better. I'm used to the 9.5"R of the R. Gallagher neck, but the 7.25 would be correct for the time I suppose..

I'm also interested in one of these...Can someone please tell me what fret-size is used on them?