Plus the bad lens that I have can function enough to get the game to load, once the game is loaded the lens is no longer used because the game is running from the HDD, it only needs to get passed the boot process of loading the game which takes mere seconds, so even a have a bad lens might still be able to load games. It depends though.
As far as using my main account on the unhacked PS3, I never loaded my main account with the Jailbreak, I used offline accounts, not once did I use my main account with Jailbreak, so I am not worried about a possible ban on my main account.
And swapping out lasers was alot easier then I thought it would be, check Youtube on guides. Its way easy to open a PS3, easy to open up the drive and swap out the laser, see youtube, the process took me less than 10 minutes.
There are only a few games that need a disc in the drive to work, but they are making improvements on that, soon all games will be working without a disc its only a matter of time.