Octo Twist has great bite and the strings stay home. Took a couple of hits before it really settled in but great feel, bite and accuracy. Starter box is such a great deal to try out multiple strings and get into the the YTex world.
I ordered the YBOX and several other strings listed on the website. I talked to Ivor to get a first hand review of each of the additional strings I wanted to try and received excellent input on what each string was designed for and the player who might be interested in the YTEX string. I immediately put Octo-twist in my racquet at 55lbs of tension and played a match. I was hitting my serve where I wanted and it added significant kick to my kick serve. I have played three matches with the Octo-twist string and won all three matches. I do think my volley required some adjustment because to the responsiveness of this string compared to my normal syn-gut of Babalot. I will try to encourage my league and players to adopt this string. I am very happy with its playability. I will gladly report on durability once I give it a couple more matches. For reference I play 2-3 times a week and am USTA rated 4.5, photos to follow.