I tried teh use that swap tool on my uncle's PS2 - fat, it didn't open properly came out abour 2CM then got jammed. So ... Wouldn't be able to fit a bakcup in.
I don't like those swap tricks myself.
I plan to purchase a permanent modification from the net.
that way I know it will work.
Like i said before though have to get a dvd burner before it will do me any good.