Hybrid tensions: please provide a definitive answer

Discussion in 'Strings' started by anubis, Jun 7, 2013.

  1. anubis

    anubis Hall of Fame

    Joined:
    Mar 2, 2012
    Messages:
    3,008
    I'm confused and would like some clarification please. I want to experiment with some hybrid combinations and I'm not really sure what the "rules" are.

    My beginner-level understanding is that when stringing two different strings such as poly and nylon, the nylon should be strung tighter, in order to make a more consistent string bed. This is because the poly is already stiffer than the nylon, and you don't want a huge difference in that kind of feel. In other words, poly and nylon at the same tension will be drastically different in stiffness. This difference could negatively impact feel and response IMO.

    So, say for instance I string my full bed poly frames @ 50 lbs. I like that tension, I'm comfortable with it and it's predictable to me. If I wanted a hybrid job, I'd still want an average tension of 50 lbs. So I'd string the poly mains @ 48 lbs and the nylon cross @ 52 lbs for an average of 50 lbs.

    Amirite? Or do I have this whole hybrid thing wrong?

    thanks!
     
    #1
  2. moonballs

    moonballs Hall of Fame

    Joined:
    Nov 27, 2012
    Messages:
    1,981
    For the full bed, you probably should string the poly cross at 48 vs poly main at 50. This is because the mains are longer so has more give than the crosses at same tension. For the hybrid, maybe 50 poly mains vs 50 to 52 syngut crosses.
     
    #2
  3. Lukhas

    Lukhas Legend

    Joined:
    Apr 3, 2013
    Messages:
    6,442
    Location:
    France
    In a full bed or between strings of the same type (two co-polys for example), drop the tension about 1kg/2pounds) for the crosses (example: 55/53). For an hybrid of two different type of strings, drop the tension of the cross further down, between 3 or 4 pounds. Will depend of the string type, but generally speaking you should do this.
     
    #3
  4. Tennis Fanatic 070

    Tennis Fanatic 070 Banned

    Joined:
    May 14, 2013
    Messages:
    1,165
    I always use the tension advisor: http://www.stringway-nl.com/en/TAonline/calc.php. It calculates the best possible tension without distortion of the racket. Also you can fill the desired stringing stiffness, whereupon the programme will show you the tensions you'll need to accomplish this stringbed stifness.
    IMO you really can't say to people at what tension they should string their mains and crosses without knowing which racket they use. It al depends on Stringpattern and length/width of the stringarea (measured from the inside).
    I never use different tensions for hybrids or full poly, I think the main goal is to prevent the racket to distort. The less distortion the better the racket plays IMO.
     
    Last edited: Jun 11, 2013
    #4
  5. TennisCJC

    TennisCJC Legend

    Joined:
    Apr 20, 2010
    Messages:
    5,280
    Your "theory" is correct but there is no definitive answer. If you are using poly mains with nylon cross, you might want to just string the cross 2 or 3 lbs tighter. Also, if you like poly at 50, I would try poly mains at 50 with a nylon cross at 53 lbs to get a similar feel. I use multi mains with poly crosses and use 50/54 or 50/55. I use a larger differential with poly is the cross but would only use 2-3 lb differential if nylon was the cross.

    I use your "theory" on my rackets and for friends when I string their rackets and they don't have a preference. There is a Luxilon string site out there somewhere and the Lux experts recommended this approach too.

    But, there are exceptions. Some pros will string gut cross 2 lbs less than poly mains but they also restring every 9 games. Some pros use what you recommend above.

    But, in general, the approach is good. Think of it as stringing with wire (poly) and a rubber band (nylon). You want the rubber band to be tighter or the wire will dominate the feel - the rubber band will never be stretched if the wire is too tight.
     
    Last edited: Jun 12, 2013
    #5
  6. anubis

    anubis Hall of Fame

    Joined:
    Mar 2, 2012
    Messages:
    3,008
    Thanks everyone. I do use the tension adviser sometimes, but it was really meant for a homogeneous string bed... not a hybrid.
     
    #6
  7. Rob1

    Rob1 Rookie

    Joined:
    Aug 20, 2010
    Messages:
    229
    I do full bed at 48 and hybrid either 51/53 or 53/51 depending on the string.
     
    #7
  8. fortun8son

    fortun8son Hall of Fame

    Joined:
    Apr 27, 2011
    Messages:
    3,144
    Location:
    The Desert
    The theory is correct as far as it goes.
    It is also true that there is no definitive answer.
    If I were trying to match the SBS of a fullbed poly, I would string the poly at the desired tension and increase the nylon cross by 4lbs.
    If I were matching a nylon fullbed, I would do the opposite, i.e string the cross at the desired tension and drop the poly mains by 4lbs.
     
    #8

Share This Page