Hi Jonathan,
Question for you, more out of curiosity as I've been reading stuff and there was reference to the fact that silicone hoses can 'release' fluid through the composition of the hoses as compared to the OEM manufacture. The discussion recognised that they are great for withstanding higher temperatures for short periods, ie competition use, but questioned the rational of using them for daily drivers.
Were you aware? I guess you simply swap out one lunchtime between sandwiches if they do 'leak' ;o)
regards, Paul