you're welcome!
sfs in my opiniom is better than french for the front. they both disappear but sfs does so better and when touching it you really dont feel the edge, with french you do a bit...french is fine for the back...personally i wouldnt specify a crown. if the piece was covering a larger area back there then perhaps. even then it would only be if i knew exactly where i wanted it placed.
being this is your first one you cant be certain about placement.

you should post a few pics with the template for input.
you should also post at the other place you inquired. that way you get additional input.
i repled there as well saying i answered here.