I would first attempt it in a lab and see if there are any system limitations as Vaun mentioned.
In addition to looking at CPU utilization, before and after, you can look at your Production Stat Server's logs to see how many calculations its currently handling. I forget the threshold Genesys states one Stat Server can handle, but it's over 250k. We're over 300,000 stats on one Stat Server, so if yours isn't close to that, I doubt you'll have concerns about Stat Server.
Log example:
18:18:01.979 Std 10060 Current load: clients: 5, stats: 300000, requests: 600000
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Tony Morrow
Sr. Genesys Engineer
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