I only just encountered Achilles' excellent influence guide, by which time unfortunately I've already got most of the way through the game. I've received the benefits of high-influence with all my party except Kreia, T3 and HK, but the only main planet I have left is Korriban, which isn't featured at all in the guide. Also I haven't done the return to Onderon yet, and of course there's still the return to Telos and the other endgame business still to do.
I'm not quite sure what happened with T3, I must have hit a bit of bad dialogue somewhere. The result is that I don't seem to have sufficient influence to effect the [Computer/Repair] advanced maintanance dialogue option/upgrade. Also, I'm going for negative-influence with Kreia and HK, but I've accidentally hit a few positive-influences with Kreia and missed a few for HK. My game is on the Xbox so I can't discover the exact influence numbers, but Kreia's must be very low (I can get her to divulge the Malachor V cutscene where Sion chokes her, but I don't have little enough to get her to tell me about her history with Revan), and HK's is probably around 30.
I also haven't done *anything* with Mandalore but apparently it's impossible for me to get the bonuses from him anyway.
If anyone could tell me about some influence opportunities in Korriban and the late-game missions I would be very grateful!
:edit: Oh, and before I forget, my character's a light-sider, and I'd prefer not to lose my +3 strength.
(but will do if it's the only way to get the bonuses)