Difffrent type of "poker"s

A "poker" is used by stringers to clear obstructions or to rotate/remove grommets from the racquet frame.

The standard poker has a smooth metal surface whilst the grommet managing poker has a rough metal surface (provides grip to dislodge the grommets) - as per the pix below. 

LHS is the standard poker and RHS is the type used for managing grommets

String Diameter Verification (SDV) - Ashaway Zymax 62 Fire

As per expected from Ashaway, the thickness of the string is as per advertised.

Apologies as not able to straighten the pix for posting

Gosen racquet matrix

Victor racquet matrix

Yonex Badminton Racquet Chart 2018

Add-On Weight for the Racquet frame

Found this item online and bought a few of the 0.5gram model for a try. 

These racquet weights are made from silicon with adhesive backing. Thus just peel and apply to the prefer position on the racquet frame.

PRO: Seems to do the job and adds just a tad more weight to the desired position on the racquet.

CON: Can be a tad troublesome to apply onto a strung racquet

These weight for the frame does offer to help add weight to your racquet, if you prefer a racquet with just a tad more head heaviness than what you can find in the shops. The silicon has not fallen off after a few weeks usage ... yet.