Fran, after reading your posts on this topic, I can only come to the conclusion that you are frustrated about something missing in your keyboards and that there is NO single manufacturer solution. All of us are compromising somehow with our keyboards but we have come to terms with what is important to us and settled for the keyboard that comes the closest.

What is supremely important to you?

Buy some equipment that will fill in the gaps to what is missing. I don't think we can find nirvana.

Good Luck
Al