Nishco
If you are in the middle of your ATPL studies right now then you are under JAR.
Your CPL will be JAR and an IMC will only gain you 5 hrs against your IR
If you were under the old CAA UK CPL roof, then you would have been credited with 12.
It's just another of those unfair JAR things!
Fact is an IMC is a UK only rating and JAR don't like it.
As Blueline says, your CPL course now includes at least 10hrs IF so why not just do your IMC after that? Makes a LOT of sense!