Interface Change on Maturity Ratings in Feed

Could the checkboxes be replaced with radio buttons?

If you choose G, then M/A/A+ are off.

If you choose M, then A/A+ are off.

And so on.

It just saves on a bunch of clicks if you're trying to go from viewing A/A+ things to viewing say G/M items. I am sure I am not the only user who is accessing primfeed in locations where you have privacy at times and much less privacy at other times.