Post regarding tensions on the internet - feedback??? (***Updated***)

Came across the following post on the internet @ http://badminton-coach.co.uk/272/why-egos-and-incorrect-information-about-string-tensions-in-badminton-could-be-doing-more-harm-than-good/ and was referred to http://www.victorsport.com/coach_detail_7439.html?cid=475&utm_source=official+Social+Media&utm_medium=Facebook&utm_campaign=String+Poundage#.U9RsLFy0wOc.facebook by a friend.

Any one with feedback?

A coach once used the following analogy to explain why it was harder to hit a shuttle to the same distance vs using lower tension - imagine the stringbed like a trampoline, the tighter the trampoline, the harder you need to push it to reach the same height as per before.

The article mentions a smaller sweet spot with a higher tension, maybe that explains why we did not hear the "proper boom" much nowdays when a player hits the shuttle using a racquet strung at higher tensions?

Tension calibrator for the stringing machine

A tension calibrator is used to ensure your stringing machine is applying the correct tension when in-used.

There are 2 types of tension calibrators in the market - analog (aka "ruler"-type) scale and digital.

If you check online, you would discovered the analog tension devices cost a bomb! Hence I bought a digital tension calibrator instead. 

Please refer to my previous article to reference how a Japanese stringer used the device.

Do shop around before you buy as even the digital version (similar to the below) can be as expensive (USD$30 not inclusive of shipping)! I purchase my unit for about SGD$8 from eBay (inc shipping) and works like a charm. Yes, pretty cute as well!

Simple but functional.

Powered by 2xAAA batteries, it has a maximum capacity of 40lbs - more than adequate for my purposes (at current point in-time) as it is seldom for badminton racquets to be strung above 30lbs. Upon reaching a stable pulling tension (or weight), you will hear a beep and the information will be displayed either in kg or lb. Other functions include a HOLD and CLEAR/RESET and the ON/OFF button (aka "smile bar")