Nah mate, no starving them at the end. See if you can find Pop22's mythbusting thread on flushing.
I've got one nearing harvest and it's on half strength nutes because that's more than she is using and keeps my pH in range without pH down. She's still getting as balanced a diet as I can give her so she tastes nice......pH down really doesn't seem to help flavour late in flower and neither does too much nutes and these final flush/flawless finish type products just seem to be a light mix of nutes they charge extra for so I'm just going light on the base nutes which hopefully does the same thing.
PS sorry I didn't get back to you yesterday....was half way to your bit and back running aboot like a daftie