tow and bring a few jugs of the good stuff from TX with you
I have a 91-octane tune and take two jugs of 93-Texas Tea.
Don't you have an email tune? If so, and you're close enough to deontation that 2-octane points puts you over the edge, then I envy your bravery.
I have some detonation headphones you can borrow to see if you're detonating, and you can even record into an MP3 player during your session, then have a listen. I use them for road tuning and dyno tuning to listen for combustion irregularities that are outside the sensitivity-range of the naked ear.