Regarding the dust caps that I didn't fancy so much...I now LOVE them. The dust caps according to Ian serve a functional purpose and may be one of the reasons why after all the EVIL I have thrown at this sub, it's still working!

Those who don't have dust caps are on their own.

Must have more dust cap.
M100,VP160,QS10HPx2,EP800,M5HP,M3,M50 v4
M80,VP150,QS8x4,EP600 v2
Air N2