@up that's the kind of answer I've expected :) thank you very much!

If you are gonna use the Dunk instead of the Mandle which I advise against, use the
level 63 guns as they have more range and hitting power than all other guns you
can put on the Dunk.

I know I could use Mandel BUT my crew is level 70+ now and they get some xp penalty
on Mandel. Example: Dunk game 50k+ dmg = 30-40k xp. Mandel 50k+ dmg = 20-25k.
That's why I'm asking about the Dunk setup cuz I love the Mandel and I know what kind
of hell I can raise in it :)

yes use the Mandel instead, much better then the Dunk lol. You can broadside at the
same angle and have 0, 1, 8, 3 ,4 hit, ships much to inconsistent for any 1 on 1 so you
have to play as a kill stealing sneaky dbag. it is good at turning and getting the heck
out of a hostile situation but thats it.

Slightly off topic : The normal BB2s, 2.5s and even the PCA are a hell lot more worth
using than the MN PBB.

Back on topic, lyon guns give you a tighter spread, have bb2 range and weigh less than
dunk guns. Dunk guns give you a crappier spread, have a bb2.5 range and slightly less
damage output.