Karen - I don't surf here as often as I used to, hence the late reply.
I have Westone UM Pro 20 and Shure 535 as backup (yes backup). I thought the Shure were too bright for me, but love the Westones,
The right size tips on them, and wearing them with the same insert pressure is important IF you are in the same group with the same monitor setup gig to gig. Otherwise you can end up drastically changing your monitor settings every gig.
It's hard to look back once you use IEM's! _________________ --carl
"Shoot for the moon and if you miss you will still be among the stars." Les Brown