Well, it seems there is a bunch of us (myself, Karmanaut, Darth Paulus, Kerk, Hegirae) who agree about the HK-50 and HK-51 having way too many hit points, making those long battles very tedious and, in my opinion, too difficult as well.
The argument "I think nerfing the game would weaken it, instead of making people realise how to more efficiently play." does not really apply, because if it was the player's strategy at fault, we'd be complaining about other tough sections of the game. But we are not. We are indicating one specific part, meaning we were up to the other challenges before.
Please will you consider lowering the droids' HP with a 25% the next time you release an update to TSLRCM 1.8? I think it'd be a good compromise and I am sure it won't make the HK factory a cakewalk.
If not, could you please tell us what files we should manually modify in order to accomplish that?
Thanks.
P.S. I am extending my support to the music Darth Paulus suggested...