Learnt about this project last week, and thought it may be informative for comparing convective tracking algorithms:
https://www.cgd.ucar.edu/projects/artmip
They have a useful page detailing all the included algorithms, including the criteria for detection/tracking. This sort of framework might be useful for e.g. coming to a agreement of what defines an MCS!
https://www.cgd.ucar.edu/projects/artmip/algorithms