I rather like tubed peeps, because as string stretch, even a little bit, I still have a clear site picture. I won't say I shoot a lot, because I've probably only put a few hundred shots on my bows since the first of the year, but once weather gets nice, I will tend to put in a couple hundred shots a day, and I've only had a few types of strings, Winner's Choice, Fuse, Dyna-flight, and Zebra, but they've ALL stretched and twisted a little.