I have had the Trialtech SL bars on since before the start of the year, not sure exactly when I received them, I found an email I sent to them reporting the progress mid January. I have not been gentle with them, they are still on the bike, they are still Beltin.
I'm using them in this video
https://vimeo.com/41243655
and this one.
https://vimeo.com/40255794
Only a few months ago but only footage I have with them on.