LED Dimming on Smartpack

Hi, not sure this is the right forum so move is needed.

We have a 6 way wall mounted Smartpack dimmer which runs our houselights. We are looking to move to LED and wonder if you have any suggestions on manufactures that give a decent dimming curve on the LED.

We have tried BELL Lighting and the fade-out is perfect but the fade-up has a threshold of some sort of we get a 'ping' on then continue to fade up.

At this stage we have not looked at the dimmer curves etc on the rack itself as looking for the easiest  solution.

Any pointers much appreciated