I was wondering this same thing, as there are 8 motors (sans head motor), so I was scratching my own head. And if the above is true (they are reserved), why do many of the skills in InstinctBittle.h have values for the first 8 indexes? Or are they not reserved, but used in postures where each motor has 2 indexes, a start and end?

dunno how I missed that! thank you!

I LOVE my bittle! However, she's dead... I bought the same charger recommended in the forum, but I'm puzzled how to connect and charge the battery. I tried jumping charger terminals to battery, nothing. Please help, right now I have a pile of useless plastic without power 🤣