I have a local trip coming up that will feature some large trout in deep holes. I am planning on using a sink tip line, something I have VERY limited experience using. Good advice on detecting strikes would be appreciated.
About the only thing I use sink tips on is wipers and white bass. With them, when you feel the jolt, you know you have a strike 
With trout I suspect it’s going to be an issue of keeping in solid contact with the fly (i.e. as tight a line as possible) so you feel and/or see any movement in you line.
Cast the line a few times to get used to how it feels to retreive it with nothing on the fly.
Then if the line feels any different at all set the hook.
Rick
Watch the floating part of the line, it is one big strike indicator. If it tightens up slightly, twitches, jumps, etc. then strike. I catch many fish on sink tip lines by visual detection of the strike where I never felt the fish pick up the fly. Using both visual and tactile senses will improve your success.
Thanks guys, had my best day ever on the Chattahoochee with a fly rod. Five decent trout, four on the sink tip. Mostly stripping woolyboogers in the deep holes. The two friends I was fishing with were much more experienced at trout than I am and each picked up about 10 fish. My work colleague and I plan to go back after school starts on a weekday. We were constantly dodging rental tubes, yaks and canoes.
What I thought would be a 4 - 5 hr. trip turned into 8+ hrs. Many leg kicks with the flippers. Did not take any water with me, which is normal for me and a 4 - 5 trip and learned a hard lesson in dehydration with leg cramps before we took out, which struck again in aces after I got home. I will not be caught a length of river where I cannot control the pace without water again. I keep forgetting I’m a old guy now.
U.J…you might want to be sure you have some minerals and electrolytes too.
you can usually feel the strike.