Well, there is no...such real thing as canon. The only reason they needed to call Revan a LS male of The Exile a LS Female were some paragraphs about them in source books.
For example, a discription of T3 for the Droid Source book held a sentence that described T3 as 'The exile her droid was an excellent companion.'
And, the Revan from the Kotor comics still has his cap moved over his head. We don't know if he's male or female.
But to answer your question; I use LS male for K1 yes...but just because I *can't* play DS and I can identify myself better with my own gender (no hard feelings, ladies
Same goes for TSL...LS male again...