I've been experimenting with tight line nymphing and have had good success in murky/choppy water that allows me to get close to the trout without spooking them. However I'm reluctant to use these techniques when the water clear as when casting further I feel like I get a lot of sag/drag. How far away can one realistically fish when tight light nymphing?
Really you are only limited by rod length. This piece covers it a bit. One alternative for fishing those conditions would be to use a striker indicator which might not exactly be tight line nymphing, but can be effective nonetheless.