Reading other posts it seems trim tabs should not need topping up unless there is a leak. I think i am good, but I’m intrigued as to methods used to get close enough to the 400db trim tab reservoir to actually do this, even with the smarts I saw mentioned like wine glass stems and ketchup squirting bottles etc . I’m assuming they are all in the same place as mine across our boats, starboard behind main exhaust pipe . Maybe I need to start yoga