Your welcome, glad you found this thread useful
Import guitars for the most part have the cheaper Chinese made toggle switches (they tend to break) so it's usually a good idea to upgrade to a better quality Switchcraft switch and jack with the braided leads. Especially if you are going to change out the pots and caps and plan on keeping the guitar.
1 Meg pots are better for super hot wound pickups that range from 14k -21K (very dark because of all the windings) otherwise you are better off sticking with the 500-550K pots for PAFs and normal Humbuckers. The 1Meg pots will increase the gain but will also make normal pickups sound a bit brittle and bright.
Fender did use some 1 Meg pots in Telecasters in the 1970's, it may have been an attempt to increase the output?? But they only did that for a short time. 1 Meg may be an option with noiseless pickups, but I stay away from them. Hope that helps...
Thank you for the informative reply. Will prolly stay away from 1MEGs and just use 500k.
Also, I did a quick search in Ebay for a wiring harness upgrade for my LP. I saw a LOT of different things from CTS to Bourns to Bumblebee caps and other things. I didn't know what to get..haha. I might have to do more research to know for sure what I want for the kind of tone that I want.