R75 Tourer - Rodding sunroof drain tubes

I have a very wet car cabin. Currently undertaking all four drain pipe lower end mods by fitting plastic nozzles to the outlets as referred to in some excellent advice and threads.



Question. I see reference to rodding upwards to the sun roof using flexy net curtain wire on the front drain tubes. Clearly this safe to do at the front. . But cannot find reference to rodding the rear tubes up to the roof. Is it safe to do this or could I pop off the connection of pipe to sunroof ?



Also I can find no detail of the connection of the tubes to the sunroof. I would feel more confident if there were a picture somewhere.

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