I tested around a bit yesterday and for my tactics the IX is overall when it comes to tonnage better.
Though I am able to sneak in with the VII more easy the area I usually go "fishing" is not very deep so escaping is not possible... I have to fight.
The best result I got when I attacked a big convoy with the IX and shooting three of the four escorting warships.. took 3 torps.
I then made an attack on the convoy itself shooting all my torps before the last DD even could reach me and I then went off... he followed me and caught one of my stern torps... then I reloaded and made a second attack.
Sunk 75kt with being hit only at the tower and that was easy to repair.
The IX is different for sure... whet the VII was fast and sneaky dived the IX is quick and stuborn surfaced... the additional torps really pay off once I have killed all escorting ships.
I will stick with the big IX and change my tactics according to the slow and big boat.
Again: Thanks for your advices.
After all it is a matter of taste and how to attack a convoy.
Gute Fahrt und reiche Beute ihr Himmelhunde!
