I appreciate the time and effort you spend in performing these tests (I really do!), but...
No BB calibration appears to have been performed on the simulant so penetration performance is suspect. (Any "pre-calibration" performed by the manufacturer must be verified by shooting a BB into the block to ensure the observed results are accurate.)
Also since you have so many bubbles in your simulant block it seems to fit the definition of "unfinished", which according to the manufacturer is not calibrated to human tissue density (see -
http://clearballistics.com/about/ ).