At what temp do you guys start throwing cold water cranks? I'm talking mainly stuff like shad raps, frittsides and custom flat side balsa cranks. 

I throw mine year round.

They still catch fish even when the water is warm.

Once it gets into the mid 50's and on down is when I do best on them.

I use them year round also. I believe all the chatter about how they are meant for cold water. But have caught many of Smallies and Greenies from the time I start my season until I pull the plug on my season. Muskies love they also. Never caught a huge one on one yet. And luckily have not lost many due to musky hitting them. I don’t see all the hype that surrounds them with the colder water but I believe there must be something to it. If you have a pattern that is pretty productive I’d try to find it in a jointed version also. I throw that as a change up once and a while and it produces fish. 

I fish with crankbaits year round, but I fish with them a little more in the spring and fall.