Kathrein, I use reciprocating a lot, but only to remove waste wood. I use larger blades (one inch size) with my MasterCarver System (it's a rotary carver that comes with a reciprocating handpiece). I also have the AutoMach and a Proxxon reciprocating carver, both of which I use smaller blades with.
With the smaller blades I can get close to what I'm going for, but no where near what I'd consider detail carving. When I get to that stage it's all hand tools and/or micromotor carving.
Size and style could play a part in whether or not it works. My work is small so I couldn't, but something big like Colin's wood spirits, might work out just fine.
Hope this helps some, good luck!

Deborah
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