I bought this product in 2015, I had problems with it from the start, the "quick cut" never worked properly, you have to press hard to keep it in the rail and after 5 minutes of recording it moves , so you have to hold it over and over again, very bad. Another situation is squeaking noises between parts, and if you're recording direct audio, that's a problem. The quality of this product is really BAD, some parts were broken. I will never recommend this brand.