add more waits between snaps, change APIs to be public for easier debugging, tweak SIZE_FIRST and NUM_FIRST values
add more waits between snaps, change APIs to be public for easier debugging, tweak SIZE_FIRST and NUM_FIRST values

bdgp/OpenHiCAMM,bdgp/OpenHiCAMM,bdgp/OpenHiCAMM,bdgp/OpenHiCAMM