Please be careful when sharing items or accounts!
Can't answer your first question, but as far as the 2nd question:A +10 Hood has: 1 (base) + 4 (safety level) + (6 * (2/3)) (overup bonus) = 9 DEFA +9 Muffler has: 2 (base) + 4 (safety level) + (5 * (2/3)) (overup bonus) = 9.333333 DEFThey are almost the same, but the +9 muffler is a little better than a +10 hood.
Be aware that the status window does not accurately represent the DEF added by upgraded items. Each + on an upgraded item is shown in the status window as 1 item-based DEF, however damage is calculated with each + providing only 2/3rds of 1 DEF
If you're bored, look for something else to do, for example go on a trip around the world with your landlord and his girlfriend or w/e. Thank you for understanding.
Yeah. Fuck what I posted here, I'm now confused myself.
Yeah, I've heard it calculated both ways, and never really knew which one was actually correct.As you say, though, either way the muffler is better.