I went to Homecenter today in search for some sealing material to use with the Shiva. The salesman said that the only thing he can offer me is a caulk made out of sponge, or a Silicon tube. He recommended the silicon tube. I said to him that the silicon might damage the driver and even if not, it will be extremely difficult to extract the driver if I'll ever need to. He said that this is rubbish, and silicon can't do any harm and in case I want to remove the driver I just need to use a sharp knife to cut the silicon. I bought the silicon tube, but before I use it, I just want to be sure I don't make a big mistake.