i can do plastic whips and ninja vanish but stuggling with other whip trick whats the best string to learn this sort of tricks ?
If you can do plastic whips and ninja vanish with your current string, you should be able to do other slack/whip tricks as well. Just a matter of patience and practice. Having said that, nylon strings generally whip better (well, maybe not ‘better’ but certainly faster and with less exertion required).
Yuki
Any heavier string makes whipping said string much easier. Kitty fat nylon, and Metz toxic strings are both great for learning whips, but once you have got the general motion down, any string works for a whip.
YYSL Ammo is great 