Something that I think is worth mentioning is that the MCC course is actually quite good, and avoiding it might not be the most wise option.
I had an MCC exemption certificate from years ago, but chose to use an ELC plus the cash for leaving the RN to do the Oxford MCC course just before my BA sim check.
The first bit is like the Flight Safety/Authorisors course which was ok, then there is lots of sim time in a 737-400 and I was taught by excellent ex RAF instructors. There are differences in how the civvy world does stuff.
I reckon that that sim time got me through the BA sim check. Now in the pool.
A point to ponder.