I’ve got an E13 one, it actually works really well. I was going to say its the only E13 thing I’ve ever owned that hasn’t been dogwank and broken in some way, and then I remembered that the top guide part of it kept coming loose and lost half the guide mid race, so I had to buy a new one, which, strangely, was redesigned…
So, anyways, after that – E13 TRS one now actually seems to be pretty good. Even when casing big doubles hard.
*Pro Tip – don’t be an E13 Beta tester. Always wait for at least v2 of the product you are after, as they’ll invariably redesign it at least once because the first version was crap.