the quality of the steel doesn't seem as high and the holes on the 2a aren't as nicely rounded as the Mk2.

The gaps on the 2a are slightly tighter i will say that

But i am far from unhappy about it the quality is still light years ahead of anything from the big boys like alpine etc. The cages are brilliant
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P.Allison fixer of big engines Mk2+Mk2a signed by God / Hacked by the Lord Aberdeen Scotland