朋友最新的推薦，Head Gravity主線的形狀是三角形的Co-Poly，據稱可以產生較多的旋轉。

之前我也曾經試過這幅線，感覺的確比之前的Solinco Tour Bite Diamond Rough 17 + Babolat RPM Blast 17g要得心應手，不過當時的球拍是 Radical Pro。

這次的磅數為: 53lb x 55lb

奇怪的是這次的直徑17g感覺很粗，更接近其它牌子的16g，可能跟那個三角形的球線形狀有關。

最後也順便更換了用了5年多已經開始爛掉的Grommet。

Update: Mar 20, 2017

Out of my expectation, it only lasted for 5 weeks or 28 hours! But overall speaking, it’s probably the best string I’ve ever come across with Head ExtremePro. I’ve restrung it for 55×53lbs this time and let’s see if this combination makes a difference.

Update: May 8, 2017

Proved the set can only last for 5-6 weeks! So I changed back to Blackcode (52lbs on both main and cross) instead, the result is surprisingly good. From my experience, Blackcode can last at least 3-4 months, let’s see.

Update: Jul 16, 2017

Sorry, that Blackcode 17 didn’t even last for 5 weeks, so switching to gauge 16 (52lbs on main and 50 lbs cross) and let’s see again.

Update: Dec 4, 2017

Good news that the previous Blackcode 16 did last for almost 4 and 1/2 months, that’s long enough, I still stick to this string from now on.

Update: Dec 10, 2017

It turns out the pro shop does not carry any Blackcode 16, and he suggested me to try Babolat Hurricane Pro 16 (50lbs on main and 50 lbs cross)

Update: May 1, 2018

The Babolat Hurricane Pro 16 almost lasted for 5 months which is good enough! I am going to use it again and this time lower the tension to 48 lbs for both main and cross.

Update: Sep 25, 2018

It proved by now that Babolat Hurricane Pro 16 almost lasted for another 5 months, so I re-strung both of my rackets with 48 lbs for both main and cross again.

Update: Mar 17, 2019

The previous Babolat Hurricane Pro 16 lasted for another 6 months, but the pro shop ran out of stock. So the staff recommended Head Hawk 16 this time, 48×48lbs, so far it’s quite good!

Update: Mar 4, 2020

The Head Hawk 16 lasted about almost one year, as half of the time, I was also using other Head Extreme Pro with Babolat Hurricane Pro 16 as the backup. So it’s not bad at all it did last for at least 6-8 months. Anyway, I switched back to Babolat Hurricane Pro 16 48×46lbs this time with Grommet changed as well at the pro shop.

Update: Oct 10, 2020

Two pro shop went out of business during COVID, what a pity! Anyway, got in touch with one of the owner and he helped me restrung my rkt with Babolat Hurricane Pro 17 48×48lbs and also changed my grommet, door to door service, highly appreciated for his excellent service!!!

Update: Mar 17, 2021

The previous Babolat Hurricane Pro 17 lasted for 3 months, and local distributor does not carry 16 gauge, so I ordered the 16 gauge 130 from TW and restrung my racket from a new pro shop this time, 48×48lbs, and let’s see if it will last for 6 months.

Update: Nov 26, 2021

The previous Babolat Hurricane Pro 16 lasted for 8 months, because of on and off courts closure due to Covid-19. Anyway, I shall stick to this string from now on with 48lbs.

Update: Sep 24, 2022

I’ve decided to re-strung my racket with Hurricane Pro 16 to 46lbs this time as my Extreme Pro feels the best just before the string breaks every time.

Update: Feb 23, 2023
Hurricane Pro 16 (46lbs) lasted for 5 months, it felts right. So I’ve decided to keep it to 46lbs from now on.

Update: Mar 26, 2023
Went to pro shop and re-strung my spare racket with Hurricane Pro 16 (46lbs).

Update: Oct 23, 2023
Last one lasted for 8 months, re-strung my spare racket with Hurricane Pro 16 (46lbs), seems I’ve finally located the best tension for my racket.

Update: Apr 21, 2024
Hurricane Pro 16 (46lbs) lasted for another 8 months, pretty solid!