I asume 19t will go 5-cell as well. I guess the drivers wanted 19t because Mod was to fast. What other reason is there?
If 5-cell Mod works fine, there will maybe no reason for having 19t in the first place? The less classes the better I say. It works for 1/12 ( in europe ), 1/8, 1/10 IC, 1/8 Off Road etc.
Why does Electric Touring need all this different classes?