I'm getting a tow strap just in case I need someone else to pull me out.
Nice to have but I'll have mine if you can't find one before hand.
After getting high centered (twice) up in Big Bear and seeing John (Sturndog's) I got one to match. The stock tires ought to be just fine along the Bradshaw trail portion of the trip.
+1 on the rain. Thursday's rain will be long forgotten by Saturday. We might see a mud puddle or two if we're lucky in the low spots.
We're still good for both days. I'll bring something to barbecue on Saturday and share a bit with the group. We're thinking Korean BBQ or Santa Maria style tri-tip (like always).