Is throwing the ball very high illegal in table tennis?

https://www.youtube.com/watch?v=-EY1ie8f8aE 

Third Ball Attack In Table Tennis | Chinese training

https://www.youtube.com/watch?v=CcszN9b9bIk 

Third Ball Attack Tutorial

https://www.youtube.com/watch?v=b3OWSn2yKhs&t=43s 

HOW TO WIN POINTS | W/ Serve - Third Ball Attack | Table Tennis / Ping Pong | Tactical Training #1

https://www.youtube.com/watch?v=nbOSNodN0zo 

DHS Skyline Series Review: Skyline 3, Skyline 3 Neo, and Skyline 3-60

https://blog.tabletennis11.com/dhs-skyline-3-neo-3-60-review 

Baracuda Rubber Review

 https://blog.tabletennis11.com/donic-baracuda-rubbers-review

Victas 401 - In Depth Review

 https://tabletennis-reviews.com/victas-vs-401-review-outstanding-rubber-for-modern-defenders/

Best Table Tennis Equipment For Chopper

 https://pingsunday.com/best-equipment-for-chopper/

Joo's Defense ( An in-depth Article )

 https://koreajoongangdaily.joins.com/2016/03/08/Baseball/Joos-defensive-style-of-play-proves-to-be-his-best-offense/3015949.html

Best Serve in Table Tennis for Backhand Dominant Player

https://www.youtube.com/watch?v=EtrbBc_wT2Y 

How to do 3rd Ball attacks By Craig Bryant )

 https://www.youtube.com/watch?v=-K1Kuox4NL4

Nice drills and review on one of the slowest LPs

https://www.youtube.com/watch?v=8IcjYz6fkhg 

Defensive Tactics by Suh Hyo-won. ( Chopper )

 https://www.youtube.com/watch?v=vxyjZMb2se0

Great Backhand Serve As An Alternative To Pendulum & Toma Hawks

https://www.youtube.com/watch?v=J9uZp9oIAiM 

Kreango , Backhand Explained

https://www.youtube.com/watch?v=KMDRA4-yEm0