RE: Christian Ludwigs new Tiger-Chassis
You will loose the bb-Funktion anyway if you move the centerpoint. The difference is 13mm between the centerpoint of HL and the correct one. You have to cut the bb mechanic as shown in the picture.
Moving the gun pivot point was not part of this kit. To do so, you must cut the bb mechanic about the distance you move the pivot point. And you have to move the elevation mechanic about the same value to the front. Otherwise your elevation value will decrease to much.
Greetings
Birger