If you're getting bullets that are well filled and usually within a tenth then don't mess with your system!
I was perfectly able to do just that without the conveniences mentioned, and have a relaxing day doing it. As time went by, time became more precious - harder to co me by. Whereas I once dedicated a DAY to casting now and then, anymore I can only dedicate a couple hours here and there where I can find them.
My typical casting session is while doing laundry, on really cold, really wet or cold AND wet days, when I can't attend to much else. Using the PID on the pot and a cheap meter with a TC in a mould on the hot-plate, I can stop in the middle of a session, fold/hang a dryer-full, shuffle the just-washed laundry into the dryer and start a new load in the washer - return to the pot and cast the next moulds-full without missing a beat or creating culls as I get everything going again.
I think if I hadn't adopted these new things we could do without, I'd probably get about a tenth of the casting done that I do. I am also a care-giver and am basically on-call 24/7 and have to be able to drop whatever I'm doing instantly to attend to other responsibilities. Not complaining - just putting my use of the conveniences discussed into context. The only time I really place my time "off-limits" is if I am doing a glue-up/assembly on a furniture project, and I make sure everything is in order otherwise and announce that "I'm going to glue - is there ANYTHING i need to do first?"
If I have a "more than minor" interruption while casting, I can simply turn off and unplug the pot and hot-plate and walk away. It will be set up and ready to go once I am able t o get back to it. Obviously not ideal for everyone, but it does allow me to keep up with casting. My (new) PC setup works the same way. I've installed plugs on separate TCs for the pot or the oven and can switch between the two. There is a mechanical timer on the PC (pizza) oven which won't allow it to run more than 15 minutes. If I get pulled away, it will time out and shut down. I need to set it up with a ramp-soak controller, which would allow me to turn on a cold oven, full of powdery bullets, and it will ramp up to temp and then time itself and hut down.
That may be more technical than most want to get and it may even spoil some of the fun, but while I am not a welder, don't have a mill or know squat about a metal lathe, but I can do controls easily enough to keep me in cast bullets - actually, me and two others. I suppose that if I wanted another "project" that I could scrounge a control enclosure somewhere, and set it up to make it all a lot more convenient. As it is, it's a pieced together setup, but it works. I wold like the safety aspect of shutting everything down after XX minutes if I walk away though.Shoot, my whole bench needs a rework anyway.