@Sledgehammer:
Well actually i've cloned my own, but in this case, where I used the mini tweaker, I used the Balao class since I have no tweak file for the cloned one. The result came out the same

Just as with the cloned one or the type XXI for that matter, the maximum submerged range is way below 100 nm, whether the sub is tweaked or not i.e. it is already supposed to have a submerged range >80 nm, the submerged range remains the same......I can smell coding and I hate that smell