well finally to the point.
i have faound a bug. the arrow is glitching. it's moving when it update redstone signal i have a image so you can see i hope

and you guys doing a good work whit mincraft

i am from Norway so my english is't on the top

Btw Jab if you understand (du gjør en fin jobb her ) = sweden (Du gör ett bra jobb här: D)