Yeah, feel free to reuse it. I have plenty of times and it works well, it will however become exhausted if you wait too long to use it, but it lasts a couple months if sealed tight in a dark bottle and not exposed to light.

Make sure you mix all of it at once, and store it all in a big bottle. That's what I do and it's been perfectly fine. I always poor my working solution back in to the bottle, maybe not a best practice? If you do one roll just use what's needed then pour it back in.

IMHO, my pictures have been perfect coming out even after a lot of reuse. Just stick with what works for you.