3550 questions!

My new 3550 is just a tad slow on the read side when burning DVDs. The DVD speed check shows 5X-12X which is fine. But all my other burners read a factory DVD faster(less time)!
Liggy and Dee! Does any of your modified FW speed up the read process a little, and any advantages to crossflashing to a 3551/450/4551 other than RAM?
Thanks as always to all! This is the best forum on the internet and always has been!
Freak is the man!