Do you know if there is some way of enabling a start delay on the mLD/3 to match the engine start on the mSD/3 when sound is enabled? I'm using the two in a consist and I'm trying to avoid them fighting for a few seconds when sound effects are on.

It is not just speed table, unless you wish to set the first CV on both decoders to 0 speed, but I am not sure if you can do that.

I know ESU have a specific way of doing what costing wants on Lokpilot decoders to match the sound start up delay on Loksound decoders. I haven't investigated to see if it can be done with Marklin ones.

It may be worth dropping an email to Marklin to see if they can give an idea of how to do what you want. It would be a good idea to give them a dig in the side by saying you want to match the facility that ESU have on the Lokpilot to match the start up delay on the Loksound. That may induce a hurry up on the answer, i can't imagine they would wish to be found wanting compared to ESU.

Whenever I have downloaded a sound project from the Marklin site for a mSD/3 conversion, this is the default behaviour when the engine sound is switched on.