I was finally able to bag the elusive #990 set from the wilds of trainland about four months ago. I have engine features, an SC-2 controlling four switches, two routes programmed and another SC-2 controlling one accessory as my lab or learning gear before I add more.
There are times when I am running multiple engines and trying crossovers as well as some features that I have to hit the HALT due a brain cramp. I don't have health issues, just normal confusion.
What was that key sequence? Uh oh, collision imminent... So, how do you keep it all straight?