I recently came across a post where a Z1C owner mentioned that to prevent the phone from losing its "water resistance", he bought the DK32 magnetic charging dock for his phone. That made me worried, will charging the phone using USB cable everyday make the phone less water resistance? What could possibly be his/her reason behind this? The only benefit I could think of the DK32 is to make charging the phone much easier and comfortable while able to rest the phone for watching movies and stuff..... So my question is, is there a durability/longevity difference between charging the phone using USB cable or magnetic dock?