Huh...if I`d think that way, I`d never leave the house or sit in the car, or tinkering with tubes...hey I measured today 390-0-390 Vrms on the PT secondary - that`s 780V AC between those two red wires on my floor...and 440-460V DC besides...but I stayed cool...(I mean, no fire)

On more serious level, I tried 3k3 resistor today, 5-minutes job. It`s about 33V voltage drop "across" it, and less voltage "across" the CCS (440-183 = 257V). For feeling even more better, drop the 440V to 390V through RC filter, 5kOhms/2W - 47µF/500V. Now you have only 207V "through" the CCS, fine.
I listened to the added 3k3 "version", and without this resistor, and can`t hear the sound difference - good.