I need to replace my OEM cases due to damage. I have read all the posts about the shad 23 and 36 and am still confused about the SH23's with the 3P mounting system. I've read posts describing a lot of required modifications and others stating only the grab handles need to be removed. Has the 3P system been changed to better accommodate the 23's? I have a 3P system coming but have not ordered the cases yet. I really don't need the 36's for my winter group rides here in FL. Thanks for any advice you can offer.