I have found an inverse relationship between memory items and airplane size/tech.. The E-120 and ATR had a boat load, with some items 10-12 lines long.. The CRJ was a bunch of 3-4 line items with a couple of 6-7's..
The Citation X had 6 memory items and all but one were 2 liners, and the MD-11 has 5 memory items all of which but two are 1 line, and the other 2 are 2 lines and 6 lines..
The worse I had to do was remember the ATR engine failure on take off for my upgrade where they wanted the entire thing memorized verbatim.