Dear BKP forumites,
Hi, I have been lurking around for quite a while and this place is pretty helpful :) so I registered. I'm also a member of SS.org and some of you might recognize me and my beloved Eclipse NGD a while back. 8)
I'm a foreign student studying in the UK and now feels like "supporting the local economy" by buying BK Pups :D
Customary pic of the axe;

I have a few questions here...
1.) I play metal on my Full thickness Eclipse (LP Custom-clone goodness). Usually in E-standard or at most D-standard so I don't really require ultra tight low. the guitar itself has lots of low and mid-low but very resonant as well (not dark). I want an aggressive bridge pup that'll give me the crisp, saturated thrash rhythm and fluid solo.(maybe back off on the lows) And a medium-output neck for warm fat organic clean and smooth overdriven sound. Need to clean up well when back off the volume.
2.) I'm gonna convert my Eclipse to passive. So apart from the pups I'll need new "pots and caps". Now I'm gonna buy the 550k CTS pots from this site but what are caps really and where do I get them? Also, do I need 4 pots? my guitar has 2 Volume 2 tone.
3.) How much does a guitar shop would charge me for replacing pups? It's my first time in the UK!
Thanks in advance folks! I'm very eager to try these pups out. Not many Thai guys have had this chance! :D