it was recommended on here to use LaserFibre Supreme as cross (using Alu power-rough as main or Topspin cyber flash). I am hoping to get more power and top spin. Question is: is it recommended to pre-stretch LaserFibre Supreme and if it is would that be done by increasing tension for let say 5% or is there some other way to pre-stretch string. Also any recommendation between LaserFibre Supreme gauge 16 and 17. Thank you.