I use Volkl PB10 MP rackets and string with Silverstring 17 in mains and Gosen OG Micro 17 in crosses, although I am not sure if it matters for this question. I've noticed that increased tension in the crosses has more impact on string bed tension than increase in the mains. I assume this is due to the fact that increase in cross string tension is partially transferred to the mains, but not the other way around. Here's my interpretation. If I pull the crosses without mains, all the energy is going into stretching the cross string, but when mains are involved, some energy goes into elongating mains (either due to weaving or racket head deformation). Tensioning stops when a certain equilibrium is reached between cross and mains, but that equilibrium is closer to the tension I am pulling on the cross, rather than original tension of the main. Does this make sense, or am I missing something? I know these topics have been discussed before, so I guess I just need a confirmation if my understanding is correct, or if I should keep researching this topic further.