xbtool for the xbox is a simple tool. you can change several settings and apply patches.
i think a program similar for the ps2 would be real beneficial.
all the coders should combine their works to make ultimate tool.
so it can patch your gfx to hdloader, lba48, v9+ cd probs, hdloader boxes, and so much more
most people have to patch the elf every time, and have multiple elfs for their own gfx, and for the lba48 etc;