Edelweiss vs Ralf Aust Ivory

I have been straight shaving for around 2 months now and I am getting close to needing my free honing from SRD. I currently have a 5/8 Böker King Cutter and would like to add a 2nd razor to use while my current str8 is being honed and you can never have too many razors, right?!!! :)


Which should I get, the 5/8 Böker Edelweiss ($130) or the 6/8 Ralf Aust Faux Ivory ($145)? For those that own one or both of the mentioned str8's, what are the pros and cons?

Thanks in advance.