Note: This will only work if your computer has the extra resources otherwise you'll end up crashing and have to start all over :-)
The dark rides take so much time and I'm impatient and don't want to just sit and watch them go around and around. So what I did was launch vmk from the regular website and in Pal in either one or two windows. You can play two or three characters this way. Have a mule or two ride the dark rides using up NPC credits that you earn everyday and let your regular character chat or do quests like normal. Just don't try and play games with your characters while mules are riding or you'll crash. Check in every few minutes and put your characters back on the rides.
If you want to try this start with the regular VMK window and Pal to see how it works. Try to make sure your cache is clean, your free of a ton of adware and that no more than 50 things are running for best performance...like you might for fireworks or POTC. It just makes it run faster.
I did this for two or three hours one day last week and won two tea parties pins in that amount of time doing this. BTW I was offered Kali couches on each pin...thought it was a good offer so I took it! :-)
Okay, so now you know....I wish you all luck!