As a minor set which specializes strictly on the
Hung Kyun shorthand technique,
Jin Jeung compliments the GJFFK foundation, opening additional avenues in neutralization skills, while providing tools which can maximize the practitioner's own force. More simply conceived in it's concept base than FHSYK,
Jin Jeung offers a quick-to-learn array of combat-ready technique. Also, it's Lam Saiwing's family set, thus speaking to the usage of Lam Family Knives as well...
The ambidexterous approach provided by GJFFK is important from both health and practicality standpoints. However, during initial stages of training fighting tactics, using the left side to set up the right (or vice versa) can help prevent a lot of indecisiveness. Thus, fighting off of one side, then using the other side as a 'switch' tactic from the
Bai Jong/ fighting stance, at least until the fighter has developed the further ability to 'make every position your
Bai Jong'...
Thus, the fact that
Jin Jeung is only partially ambidextrous should not be off-putting. If this was the only training material one had, of course basics should be practiced left and right...
Meanwhile, nothing replaces GJFFK skills. So, to learn the
Jin Jeung first, if training from a skill-base standpoint, would be an 'eat now, pay later' plan. Personally, I prefer to approach the entire system from GJFFK skills, because it's what everything else in WFH
Hung Kyun is based upon. Why approach from some amendment or digression from WFH's program?
Likewise, as FHSYK skills represent such diversity in scope, this obviously represents a higher stage. While
Jin Jeung compliments the GJFFK foundation, to spend significant time developing
Jin Jeung skills after training those in FHSYK would actually be back-tracking (not always a bad thing, lol)...
Still, most beginners are going to be motivated by practicing sets, and
Jin Jeung Kyun is quite approachable as an introduction. It is common knowledge that GJFFK can be fairly daunting to beginners, if attempted in its entirety. Also, even learning GJFFK, beginners should relax, and just breath naturally...
Of all the minor
Hung Kyun sets that can be trained, IMHO
Jin Jeung is the most concise, offering a fairly complete (if rather specialized) picture of shorthand concepts, as well as good foundational development overall...
Once having gained foundational skill and conceptual familiarity through set practice, all further development can be more meaningfully pursued...
In sum, although WFH
Hung Kyun ultimately does not need this set, Jin Jeung does encapsulate some variance in GJFFK skills, and thus can be of resource at higher levels also, as all else depends upon reliable GJFFK skills. As times, places, and needs have changed, such encapsulation can be an important learning tool, where practitioners are asking some direction in which to 'experiment'...
Therefore, while training
Jin Jeung either before or after the GJFFK are both fine, teaching any time after FHSYK, if we are going to keep these skills at all, it's better late than never!
Best,
Michael