Definitely. 16 Mark II L is absolutely crap...

Then it is kindly hard to understand their designing. Because 16 mark2 has longer reload time, higher muzzle speed and only available for gunner with higher level and larger space.

Mark I Ls are from Nelson, those guns got good range and damage, the Mark II Ls have less range, more damage and more weight.

Lion guns are the Mark IV Ls, good damage average BB4 range.  

Mark IIs are not worth it.