I too like the long ones, have owned a couple 629s and once a 657 all with the long tubes, currently have a 617-2 and a 629-5 both with 8 3/8ths barrels, I bought the 629 from a forum member here and it is a fine shooter, I have a 686 but it was picked too early and only measures 6".
No pics of them, I will have to work on that....