I have fire doors with Perko closers. The doors are being replaced with panelled fire doors for appearance, I have seen hydraulic tubular closers and wonder if they would be less inclined to slam? I am having fire frames with the furry smoke pile which stops draughts and reduces noise, and even though the door is trimmed to barely touch, it seems to slow it just as the latch should be closing, so it needs quite a firm final pull; yet I don't want them to slam hard