OK, I haven't read the entire thread, but I, too, have had the tampon string irritation issue. It's really annoying.

So since my first century ride is in 2 days I picked up a box of Instead Softcups. They're a little uncomfortable to insert and remove (because the ring is such relatively hard and stiff plastic), but seem to work really well and I don't feel it at all once it's in.

But they aren't cheap and I hate how wasteful they are, so I think I will be looking at a washable menstrual cup in the near future. I also have VERY short cycles (22-23 days) lasting 10 days, so I'm sick and tired of buying box after box of "plugs" (cannot wait for menopause...because of this and endometriosis symptoms since puberty that were officially diagnosed when I was 30).

My question...I have a very tilted uterus and weirdly angled and pretty sensitive/delicate cervix--it always bleeds and feels tender after I have my yearly pap.

Is there a particular menstrual cup that would likely work best for me?