Ringing is extremely high in your scopes plots. Often the ground tip of scope probe makes trouble: Pigtailing of ground tip is responsible for ringing and resonances. There's a simple remedy: Could you please use such a ground spring to make your measurements?



This will help to avoid these pigtail effects. By the way, you don't need to buy such a ground spring: Form it by yourself by using a simple piece of wire, which you bend arround the tip of scope probe. Advantage, you can solder it directly to signal ground and you don't need to hold the scope probes all the time. I do this always when dealing with high frequency applications.

Can you also post some scope plots of the voltage drops across Rsense?

Kai