I just hit senior status a few weeks ago but I was able to find an IOP in the open section after reading for several hours. The senior section isn’t a magic button but it opened up more of what I was looking for and after spending more hours have found another. I know everyone uses the phrase don’t spend what you can’t afford to lose but personally I don’t want to lose any. At the very least minimize the chance and lots of reading is what works. Sometimes you have to modify the words you use to search. Happy researching everyone!