I'm looking at getting a pair of mountain bike shoes and am leaning towards either the Giro Sica or the Mavic Scorpios. I've not been able to find the Scorpios to try on in person, only the Sicas which I do like. I'm not sure how the sizing works with the Scorpios and am a little leery of buying them online without trying the sizes first.

I've found some positive reviews here on TE for the Scorpios but I haven't really found any info or reviews on the Sicas. Anyone try these and have feedback? I'm a beginner looking to finally get actual shoes and to begin the rite-of-passage of clipping in (eek). At this point, I don't think having a carbon sole or not will make much difference to me. Any opinions would be greatly appreciated!