I opened my Deluxe today and to my horror realized that in my early days of tinkering (about 2 years ago), I seem to have replaced all four filter caps with 30µf caps! The stock values are 16µf for all. From what I understand, increasing the values on anything other than the mains filter supply is bad for the sound; from what I understand, upping the value for the preamp supply is especially a no-no. So I was going to leave the first stage at 30µf and replace the others with 16µf. My question is, is it only that very first cap that gets increased, or do you increase the screen supply also? Thanks a lot!!