sorry for the spam, but it was brought to my attention that I might be misinterpreting that quote from the Oracle docs "The SetBigStringTryClob connection property of Oracle Database 10g Release 1 (10.1) is no longer used or needed". I read that as "Oracle 10.1 and up no longer needs it" but I think it really is saying "that property that was in 10.1 (an apparently used) is no longer needed or used in later versions".
So I may be wrong that it isn't used in 10.1.