You can use IMC time, in the same way as you can use Safety Pilot time. There are core requirements which must be met - i.e. 15 hrs with an APPROVED instructor - which means FAA CFII or IR rated IRI abroard. You must also meet some other CFII requirements too. But other than that, how the balance of your hours are made up, who cares.
Regarding Bull!!!!! on these forums, you are right Bose, there is lots going around and lots of misinformation.