Tan is training a punching concept so its pointing as high as your head fighting because I'm hitting your head, not blocking
but when doing SLT, dan chi-sao , etc...training the elbow, we do it low so the elbow doesnt hinge up and down. We want a low elbow so it creates the cutting punch lines inside jum, and out tan. The tan doesnt leave the center in SLT or drilling for a reason, it is trying to lin sil di da using the 'spearing/stabbing' force to "displace as I hit the face" IF I MEET anything on the way.
you can combine any energy as you need pak to jut, jut to pak , inside jut, outside jut, bong slap to jut , there are no fixed responses. Our thinking of chi-sao is this action reaction, energy bad, good ? not there at all....to make the students focus on their striking techniques rather than fighting in chi-sao with dual arm exchanges.
Not an arm wrestle trying to manipulate arms that we wont be able to do at speed anyway.
tans ELBOW uses kinetic , ballistic , displacing energy while the FIST STAYS CENTERED, and wrists x the line sweeping, lin sil di da, jum is its partner in attacks, also lin di daring.
Try turning the tan palm up, suddenly , sharply, to a vertical palm as you strike forwards. This shows this elbow outward action, while striking.
The dan chi-sao drill uses jums inward elbow control versus the tans expanding elbow, each punch is displacing the other on the center while each strikes forwards. no sticking feeling bs.
Just two simple punches being developed for fighting later.