Ok just watched the parts you specified , after you have jammed the bicep what would be his counter to that , in your lineage?
Off the top of my head , in our lineage we would probably pivot and roll in to a low bong sau , if your hand gets trapped inside his bicep there could be a possibility of getting your arm broken at the elbow joint.
The other counter might be what we call a "reverse'' Tan Sau , do you have that in your lineage?
Basically , unlike your normal Tan Sau which goes forward , this Tan Sau goes backward due to pivoting , think of rolling with both your arms one in Bong , and the other in Tan.
On the Tan Sau side you pivot back , that is the "reverse'' Tan Sau.
It's used to break the opponents structure by causing a dual , pushing /pulling force , he gets dragged in by the Tan Sau on one side and his structure is left compromised on the other and vulnerable to collapse.
This would also counter the bicep jam.
But since your lineage does these bicep jamming techniques , I would be interested in knowing what counters have evolved to deal with them.