Has anyone changed the heavy wall barrel on their a1 to a standard wall barrel? I have an older 18.5 inch 6 shot a1 and have always found it nose heavy. I recently handled a 590 (non a1) 7 shot model 50778 at a lgs and found it to handle much better due to the lighter barrel. I called mossberg and they said they could sell me the lighter barrel but that i would also have to change out the mag tube and spring (6 shot vs 7 shot). It would cost about 200 bucks for all the parts and shipping. Also, Im not sure how easy it would be to get the existing mag tube off and the new one fitted in. Has anyone done this before or do you all usually just buy the different gun? Really like everything about my a1 (finish, metal safety amd triiger gaurd). I just dont like the extra weight of the heavy walled barrel.