I've been playing with babo VS 17 in mains and Luxilon BB ALU 16 in the crosses. My question is this: If poly hardly ever breaks (which is my experience) how come people don't play with it in 17 or 18 gauge which I would think would give you more power/spin? Is it because Lux doesn't make an ALU 17 or 18 gauge? Tension retainment? Along these lines has anyone tried both a gut/BB ALU 16 hybrid and a gut/Lux TIMO or Lux ACE? (one of the thinner Lux strings)? Which did you prefer?