Originally posted by mikeboyer92
can you guys please enlighten me on why it's good or bad to do if you have a jb ps3?
Well, you can only data transfer to a PS3 with equal or great firmware; if you wanted to data transfer to your 3.55 PS3 from your 4.11 PS3, you would have to spoof your 3.55 firmware.
The only downside I can think of is when I had Rogero 3.55, I spoofed to 9.99... but when I tried to undo the spoof, it wouldn't work and I was stuck on 9.99.

-- I had to downgrade to 3.41 and update to Kmeaw 3.55
I don't know what you really mean by "good or bad", but that's just from my experience of ''things that can go wrong''.
EDIT: I'd just like to point out an error in your signature:
"I Give Rep, When Rep Is Do!".
Should it not be,
"I Give Rep, When Rep Is Due!