When you say stride length must be appropriate for limb length and strength levels, could you see significant improvement in stride length with strength improvement considering the technical adjustments to prevent over reaching are made?
If I am not making myself clear, what I am referring to, is can limb length be a limiting factor in stride length regardless of strength levels?
To me, it does not seem so even at elite levels so long as strength levels can be increased.
Lastly, at elite levels, all things being equal can more gains be had with improving stride length (via strength levels) or stride frequency?