I don´t really understand the idea of playing low or medium suited connectors. Why would they be much valuable than unsuited ones? If you do hit a flush with say 98s, there is a pretty big risk that someone has a higher flush than you do and therefore you can´t be much confident in your betting. It seems to me that you would lose due to higher flushes as much or even more than you win with it.
And it ain´t often that you hit a straight flush with them.