Yes it is the tiny DOF that gives me issues after years of trying to perfect my technique with standard macro it is like starting all over. Have not worked with the Raynox enough to get used to it not sure I ever will I am going to get another Laowa 2x lens before spring
Biggest tip I can give is proper lighting and tons of practice I have been on here since 2011 and mostly learning and practicing macro you can look back at my post and see the progress. It takes tons of patience and and figuring out what is best for you I carry a small camp stool with me and many times will sit in same spot waiting for the shot for hours and it has paid off I consistently achieve about an 80% keeper rate. I once did a tutorial on Pentax Forums and have thought about trying my hand at a YouTube tutorial might do one soon.