hi there! million thanks Hermes,Yep, TheKillerPenguin and all previous posters. i think i got a pretty good starting point with the info you all gave me. you can see this is a nice comunity , glad im here.

btw ive got a couple ideas and doubts regarding my particular situation with bike training , but i think ill do another post somewhere in the near future to see what you guys can suggest, for now i just wanted to thank and declare this issue solved for me, so it doesnt steal more attention in the board, cheers!