no problems mate i used the allen keys and needle nose pliers grease and oil if you see any knackered o-rings replace them maybe worth replacing them all to be fair you have 5 full sets but first just try replacing the 2 o-rings on the bolt as long as you follow the videos precise dont go as far as to remove the board i only did that cuz i was almost there anyway ill inbox you my old settings aswell if you want messed for days trying to get that marker to fire how it should lol