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Red Light Therapy really helps to relax my back muscles. It is my daily routine to put on a red light therapy belt (a belt full of LED) to get a good dose of celluar stimulation/repair.

For 70+ people like me, I look like the fish belly (魚腩) of the club.... Plus young people don't look good losing to me, so they are extra motivated... try to move old people around from side to side ... The most important issue for me is not to get hurt. I use a heat belt to warm up my back ~...

Korean Gozip Tong: little glue lightly pressed 7:35 Butterfly: machine press 5:22 Nittaku: full glue press hard 3:23 Pre 1975 Stiga: very low pressure and nailed with two nails Ariex Sport: 16:54 Wonder how pressure and glue affect vibration modes ???

around 24:00 explains the grip using wrist, fingers but not the thumb.

Find this 1979 Stiga Stellan Bengtsson super carbon from my vault and build a 167g Chinese penhold racket FH rakza7 1.8mm BH C-1 2mm.

My clubmate uses this programmable touchscreen watch to keep track of scores for many years. He wrote the program in javascript. https://banglejs.com/ He also helps me to extend my "let detector" to bluetooth capable. Whenever there is a "let", this watch buzzzzz ...

Huh, Butterfly ...

Coach 梁 plays like the style that you described, he played matches with his cellphone, and he lives in your area. https://news.hubeidaily.net/pc/c_2905204.html Seriously, I *think* coach 梁 uses Stiga Carbo 7.6 WRB, a 13-layer thick blade.

I glued a thin mahogany veneer to the handle, then sanded it down a bit. https://www.veneersupplies.com/products/Mahogany-Khaya-Edge-Banding-1516-x-500-Non-Glued.html#

My $50 Yinhe pro 05 penhold is fantastic, handle is shaped oblong weighs 83g. FH Battle III, BH tenergy 05fx. For $50, really outshines many BTY blades 5 times its cost.

My light setup for playing with pong robot: wood blade ~ 78 g Battle II BS ~ 50 g gewo neo 325 ~ 36g

She (ZXT) said her LP is not treated, which is illegal in professional play. Treated (solidification) makes LP somewhat frictionless ... this video shows how testing is being done for illegal LP https://www.bilibili.com/video/BV1CP4y127wK/

Two untested ideas: 1. run a long tension string along the side for vibration sensing. 2. run a piezoelectric ribbon along the side https://www.adafruit.com/product/4931?srsltid=AfmBOorHFB2LKQNrzdfxP4M4DhcA5gbNsIuNPluds5VJyilGuaHYyDe3

I use a 3-axis accelerometer (X-Y-Z). Floor stomping might generate dominant vibration in one axis, but not the other. So choose detection axes carefully ....

Thanks. Club mate Moitz made a nice 3D printable case (white). Adjacent to the case is the wireless version. Can't make $ with this kind of things unless that is a "Butterfly" logo on it 😉

For fun, I built an old school "Let detector" for my club. It consists of an accelerometer, an LCD, a micocontroller, and battery power source. The accelerometer hangs off the net, and an LED flashes when vibration of the net is detected. Sensitivity can be adjusted by a dial on the...

Cork might obscure "ball feel" for single side penholders. This penhold world champion has a crevasse at the back of blade (single side), whom wants his fingers as close to the blade as possible.

Use Penhold strawberry flick to contact the other side ?

Not word for word, the substance of the video: 1. hold the racket deep 2. use the bottom and side of the thumb to generate power 3. hold the racket loose, use the thumb and index finger to adjust racket angle, then hold the racket tight to exert (generate) power 4. the three...

With curled fingers in the back, a subtlety is the difference between a. resting the finger on the rubber b. pinching the rubber with the tip of the finger (or finger nail). Pinching the rubber yields more power and solve the problem of slippage. Watch the first 1.5 minutes of: