Sorry for just getting back to you, busy weekend.
If/when the r/s occurs, the initial price would be $20 in your example, and will be treated no differently than at .20...there will be a Bid and Ask price and you can buy or sell at those prices, whatever the market (or MM, hahaha) will bear, same as now.
Hope that helps.
P.S. I don't coach anymore, as my sons are now 19 and 20, but loved it when I did!! Hope your girls are still doing well!!