hey jewishseas,
just remember if you flip don't take MDXX early as like other peeps have stated u will come down during the trip and even if u have peaked and still have just 3 hours left in ur trip the LSD can kick ur ass. Also u said ur keen on the pingers and this can make u want to drop quickly especially if the LSD is making u nervous (like many sub par does can like a 1/3 tab).
If u have time get those nangs, fuckin get them, but i would reserve that for a home trip personally. If nang + lsd + mdxx is the combo for the first time. Keep safe for new combos - best try at home.
Also Mr Blonde Vines arn't that bad vision valley is a mad tune to get comfy too but never seen them live and the lead singer looks like fag...
Peace.