Hello!
I have just tried your last idea. Works good! It's true, it does react slower, even more when you have some delays in your sketch (like me). I think that when I'll replace the delays I will use this version (last one).
For the moment I'm ok with the previous code but with a higher value of " i " (about 2500). With this value everything works fine (with a little blink of the value - till counts 2500) but isn't annoying.
Thank you very much! You helped me a lot!