Fastest Lap times and multiple user saves on one PS3

[acjy1985]

I have a question and was unable to find an answer through searching. I share a PS3 with my brother so we both have a user account and a GT5 save game. I have been playing a lot longer and in practice mode have lots of fast lap times on the 5 tracks I use as my 'test' track. I noticed on his game that all my times were on there. If he sets a top 10 time on his account, will it show up in my account too?

Does nobody know an answer to this? Can somebody with duplicate accounts give it a bash for me as I don't want to mess up my best lap times by using a car that doesn't qualify for my testing criteria.
Thanks

 

[stormbringer]

nope