as far an harder AP ==> AP is like a puzzle for us, solving harder puzzles just improve you, and we do have fun solving them even though we are not sleeping and hating it and stuff sometimes
as for how it works => Normatt said it, no need to oversmart him, his answer was correct, unlike all of yours
as for the GTA save file ==> Both were 64 KB for me, the only problem for me was with AK2 2.1 AKAIO autosaving it to 128 KB instead, which caused a little reading errors as the game engine, even with AP patched, is not meant to read the extra 64KB of zeroes.
as for the R4i Gold comment => I think Dr. Who got one of those... -me thinks-, maybe the R4 team are time lords? maybe they brought the console from 2012, the Nintendo DS, which was a big hit back then, and made it a big hit now...? then maybe they were like "We brought Nintendo their console for the futurez, we wantz moneyz, we don`t get moneyz from Nintendo we screw Nintendo"..., Time lords, meh, who gets them?, though my R4i Shiny with a button to summon digivices which summons monsters which then dive inside the digi-data inside the R4i to acclerate its amazing magnetic power to raise its energy to a huge level, then all the energy is converted to kinetic energy ( [E(k) = (M*V^2)/2] when E(k)= Kinetic energy, m=mass and V=speed\velocity ) and then the speed of the engine starts to increase and the Mass is reduced to zero by using photons and then when the mass is down, it breaks physics and summon a Duel Wheel (Yu-Gi-Oh 09-10) and I can travel through Time and Space, then, I will call it R4DIS => R4 Dimentions In Space [TARDIS = Time And Relative Dimensions In Space] am I YGO\DR.WHO addicted now? or am I a physics freak?