Hi, I'm currently making a metal and polycarb tank (510) for my new don! Im looking to use the new CE2 XL R5. Im thinking of either using a synthetic bucking or o-ring for the thread end so as to make it easy to take out and hopefully not leak 
Any tips on design or asthetics?
I have a feeling it may take a lot of adjustments on the metal work to make it easy to fill/change CE2 and yet be sealed....
Also ive noticed a lot of variations on ce2's, some are ribbed some smooth on the thread end making it more difficult to machine the correct diameter

Any tips on design or asthetics?
I have a feeling it may take a lot of adjustments on the metal work to make it easy to fill/change CE2 and yet be sealed....
Also ive noticed a lot of variations on ce2's, some are ribbed some smooth on the thread end making it more difficult to machine the correct diameter
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