Mine was a Carwise rail but tbh there all the same if you look at them. They dont have any clips to hold the injectors in and just use the mounting claps to keep the injectors situated, mine pushed an injector O ring out and sprayed fuel everywhere. The newer ones might have ironed out these problems but i am sure Rod Birley had problems with his upgraded Fuel rail at the start of this season.
I went to a standard item and never had a problem since. Ahmed also said to me the standard one is more than up to the job, that was enough for me to stick with it. I will be being having mine braised for - fittings.