ok well firstly Smiff

the save states don't have a section to set defaults for,

which you should know, so they always use the save states assigned to them.
the only settings that are defaulted are the ones i listed, and i have no problems with them.
i've tested plenty of games, from varying developers, and the only ones i do have problems with is the ones that the emulators says will have problems.
heres a list of games i have at the moment,.. i've had about 200, i've just not put them on since i reinstalled
Banjo-Tooie.v64
Blast Corps (U) (V1.0) [!].v64
Blast Corps.v64
Castlevania - Legacy of Darkness .v64
Castlevania.v64
Conker's Bad Fur Day.v64
Destruction Derby 64 .v64
Diddy Kong Racing.v64
Donkey Kong 64 .v64
Dr. Mario 64 .v64
Duke Nukem - ZER0 H0UR .v64
Earthworm Jim 3D .v64
Gex 3 - Deep Cover Gecko .v64
Gex 64 - Enter the Gecko .v64
Glover .v64
GoldenEye 007.v64
Harvest Moon 64.v64
Hercules - The Legendary Journeys .v64
Hey You, Pikachu!.v64
Jet Force Gemini.v64
Kirby 64 - The Crystal Shards.v64
Legend of Zelda, The - Majora's Mask.v64
Legend of Zelda, The - Ocarina of Time - Master Quest.v64
Legend of Zelda, The - Ocarina of Time.v64
Mario Kart 64.v64
Mario Party 3.v64
Mega Man 64.v64
Neon Genesis Evangelion.v64
Nightmare Creatures.v64
Perfect Dark.v64
Pokemon Snap.v64
Pokemon Stadium 2.v64
Snowboard Kids .v64
Snowboard Kids 2 .v64
Star Fox 64.v64
Star Wars - Rogue Squadron.v64
Star Wars Episode I - Battle for Naboo .v64
Super Mario 64.v64
Super Smash Bros.v64
Superman.v64
Transformers - Beast Wars Transmetal .v64
Xena Warrior Princess - Talisman of Fate.v64
several of them are set to protect, or cache, in the RDB, one of them (diddy kong racing) doesn't have any setting apparently.
all of these work 100% on Check memory advance.
only one in that list that has noticeble problems is Neon genesis, but i beleive its a known bug... happens around the end.
of course the 2 starwars games, are busted

waiting for PJ641.7 to fix them.