What you believe is very sensible, and most would agree with you. I hope a braided whip from period is found soon, I'm sure they existed as well. Apparently, other materials were used, leather is in question here. I wrap and cut targets from assistants who have agreed to do so, and only after a total understanding of the whip's potential has been reached. I am going to limit this to a signed waiver system, thanks to your convictions.
Sound production is a BAD idea.
This gets people to yanking back on their whips, altering the taper, and possibly hurting themselves. A properly thrown whip will crack better then most suspect, especially if it's made well. I envisioned this initially as a combination foot-race and target accuracy event, conducted over a mild obstacle course. Just some additional thoughts. Try looking for books on leather braiding or whip making.