Hello, I haven't logged in here for a while but saw this post and thought I'd say that from memory the best way to identify between the two is the length and shape of the tail. L333 will have a shorter tipped tail (stubbier) whereas the l066 will have longer tips that will accentuate the tail. If you are able to find reliably identified pictures online it becomes fairly apparent.
Alternatively if your able to take side profile shots we could hopefully help identify them further.