Speed differential is too high
Submitted by FelixO
The speed differential is too high especially between Medium and Fast where the speed doubles.
At least one additional speed level is needed between Fast and Medium (suggest 4 seconds from left to right) Rename 'Fast' to Crazy, Insane, Madness, Panic etc.
Current Speeds: Fast 3 seconds Medium 6 seconds (twice as slow than Fast) Slow 9 seconds (50% slower than Medium) Beginner 12 seconds (33% slower than Slow)
(seconds refer to single pass from left to right)