This is excellent stuff, I just posted about it over at SMS Power! and I'm happy to provide advice on SMS hacking in general. I may not be a super-regular visitor so feel free to harass me by email...

SMSExamine tries to figure out the executed bits of code and leaves the rest out, marked as data, but it often gets things wrong (especially when there are table lookups). For disassembling, I usually use z80dasm which you can find here: http://www.smspower.org/Development/Tools#Disassemblers