Site Products
Coach Stefan Feth

Ask The Experts

Posted on

Ask The Experts

Question: Hi, If I want to use for my forehand a Tenergy 05 and for my backhand a Tenergy 64 or Tenergy 64-FX, which blade is more suitable with these rubbers, the Butterfly Viscaria or the Butterfly Innerforce ZLC? And what is the difference between the Tenergy 05-FX and the Tenergy 05, and between the Tenergy 64 and the Tenergy 64-FX?

Answer: Hi Hrawi,

Thanks for your question and interest in Butterfly equipment.

I recommend for you to try the Innerforce ZLC blade, with Tenergy 05 on your forehand and Tenergy 64 for your backhand. The Innerforce ZLC is slightly faster and has a little softer touch than the Viscaria. This will fit well with the mentioned Tenergy rubbers.

The difference between the the regular Tenergy and the Tenergy FX version is the density of the sponge. The FX versions of Tenergy are made 4 degrees softer and are 5% lighter in weight, which makes the feel of the rubber softer. The softer feel provides more control, which makes it easier to generate spin with.

To have the best understanding about the Tenergy series, you can also check the following video which will provide you with a complete explanation.

All about Tenergy – Science

Hope you enjoy your new racket.

Best,
Stefan Feth
US National Team & Olympic Coach
Coach @ WCTTA
www.tt-champions.com

Note: The Innerforce ZLC has been discontinued, look for the new Innerforce Layer ZLC coming soon!

Latest News

Keep the Racket High

April 10, 2026
1,2 or 3 balls in Forehand and 1 fixed ball in Backhand FETHOMANIA 25: Drill 4 https://youtube.com/shorts/PKhCJK_su28 All… Read More

Cindy Zhu WTT Contender Paraguay

April 10, 2026
(by: Bowmar Sports) In this Bowmar Sports Tournament Highlights is a highlight of Cindy Zhu's performance https://youtu.be/kvdJ4sTt2VM Stay “In… Read More

Want More Control?

April 8, 2026
1,2 or 3 balls in Backhand and 1 fixed ball in Forehand FETHOMANIA 25: Drill 3 https://youtube.com/shorts/G5uFWsxbVBk All… Read More

Butterfly Signs Landmark 5-Year Title Sponsorship with India’s Premier Professional Table Tennis League, Ultimate Table Tennis

April 8, 2026
(By Butterfly Global) Long–term partnership to elevate India's premier table tennis league and expand the sport's ecosystem nationwide.… Read More

Arantxa Cossio Aceves – WTT San Francisco

April 8, 2026
(by: Bowmar Sports) In this Bowmar Sports Tournament Highlights,  Arantxa Cossio Aceves is in action at the WTT… Read More

Lingshaui Meng – Forehand Mid Distance Looping

April 7, 2026
(by: Bowmar Sports) In this Butterfly Training Tips, Lingshaui Meng is working with a student on their Forehand… Read More

🎥 Episode 8: Ask The Expert Live With Logan Rietz | Don’t be afraid, try some pips!

April 7, 2026
(by Bowmar Sports) In this video, we break down the fundamentals of pips in table tennis focusing on… Read More

Try to Stay Within Arm’s Length of the Table

April 6, 2026
(By Larry Hodges, Member of US Table Tennis Hall of Fame The operative word here is “try.” Table… Read More
View All News

Get the latest from Butterfly

Stay “In The Loop” with Butterfly professional table tennis equipment, table tennis news, table tennis technology, tournament results, and We Are Butterfly players, coaches, clubs and more.