Recently my friends at SFBadminton.org and I have switched to tennis due to COVID-19.
I play everyday for about 1 to 2 hours practicing my serves and with my new ball machine, basic hitting forehand and backhand.
When the strings on my new EZONE 100 finally broke after 1 month of daily playing, I asked the nice folks at City Racket Sports in San Francisco to recommend a better string for control and spin.
Wow a huge difference! with 2 type of strings @ 55 pounds, the tennis ball left my racket with a lot more control!