I had such a great return of feedback from my last post I wanted to see if I could get another question answered.
You're totally ruining our reputation for being belligerent and unhelpful.
I was going to post a serious reply, but you pretty much got everything answered. I keep mine pre-rigged in the left pocket as well (even if I'm just doing a drill, that's how I do it in real life, so that's how I drill.) I also have a larger 6' SMB on my BP that only comes along for safety reasons. I keep a spool in my right pocket for that.
For deco dives or times when you might need to use the spool to search for something (the wreck, lost buddy, etc) most people just bring an extra spool.
Just curious what does the safety spool benefit you on a deco dive?
Tom