Hi all , I recently bought myself a second hand set if jenvey 42mm dcoe bodies off of ebay .. It's my first set of bodies so I'm rather exited about it all .. Anyway , on collection I gave them a quick check over and all seemed well good general condition etc etc . However , now I've got them home and have studied them a little more ive noticed that on 2 of the 4 bodies you can see a tiny bit of daylight through them when the butterfly is fully closed , the other 2 look fully sealed . It's not a huge amount but has worried me a little.. Is this normal and will this cause running issues ? Any info or knowledge comes greatfully received . Thanks .