Hi, im sending in a Tippmann A5 to be repaired and thought I may have some upgraded parts fitted while they're at it.

http://www.store.justpaintball.co.uk...ppmann-a5.html

and an aluminium cocking handle/new spring.

The second one I can't see anything going wrong with, but i've heard mixed things about metal powertubes. The manafacturers tell you it'll make it a more reliable marker, but i've read that the plastic stock one is actually better?

http://www.tippmann.com/forum/wwf77a...-tube-problems

Any advice on what I should/shouldn't get would be much appreciated (preferably from people who have a bit of expierience with A5's and not just things people have heard).