4. Elasticity effect - 1 or higher, in shorter words driving and Handling add elasticity effect to all upper skills, inside defense adds elasticity effect to all inside skills. But every skill have skills from which it gains elasticity effect if average of those skills is higher than skill that you train. Sorry for complicated explanation but elasticity effect is complicated thing5. Cross training (+gym) - ~0.93, 0.07 to the one skill that you don't train (but because of cross training, you will train).
To have most benefit of the elastic effect you should train i. e. Outer Defense almost to the desired skill than Switch to Passing.
unfortunately my country doesn't debate much, luckily the information you gave and some good coaches from my country that I got in touch with have helped me a lot