If you look at the end of the RealDrums file there are shots that are listed at the end of the Drum's txt file.
Some have a lot of different hits and some don't.
You can maybe look for another drum by the same artist on the same kit and see if it has more shots on the end ?
https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=431075

If they release the realdrums multichannel versions in the future that would solve a lot of issues.