flashme + m3 perfect questions

I have a m3 perfect + passkey2

and i hate always having to take the passkey with me.
so i found this firmware hack "flashme"

so i have a few questions:
1. Does flashme run perfect with m3? (does the mario kart problem still exist on m3)
2. Are the chances to f*ck your NDS up big?
3. Is it hard to install? (i saw some site where they said you had to make some bridge to install it)
4. is there any good tutorial on it?

thanks

 

this site will tell you everything you need to flash your NDS

http://ds.gcdev.com/dsfirmware/

this one has pics and movie

http://www.dspassme.com/FlashMe.shtml

 

thanks i allready found the movie .
i installed the flashme and it runs perfectly.
i tried a game and a movie and it booted without passkey
finally i don't have to take that thing with me all the time (i only have the m3 perfect for 3 days now)

some roms didn't work with it, but i figured out i had to use trim rom.
with trim rom (i think) all roms work. and if a rom doesn't work you can still use your passkey.