depends on what direction your going.
I never thought 3 ways were so hard to use. God help us if we gotta use a 4 way.
Best give customer an instruction book on how to use a switch
There's two possible ways the 3-ways can be wired with it comes to the position of the switches:
One way is: (switch 1 position/switch 2 position/light is.....):
The other way is:
Of course, this is assuming there's no 4-ways in the mix!
I brought this up here on the forum a long time ago, I have for the last 30 years will always have the 3-ways and or 4-ways so that if all the switch's are down the light will be off, some of my co-workers would tell me I was too picky to worry about this, but a Job of finishing up a basement for a customer of the company I worked for who went out of business this summer, and he noticed it right off the bat when I was done that I did this through out the basement, and he then ask if he could pay me to do the upstairs the same way, so I picked up another 3 hours from the job just by doing it, the customer said he was told it was imposable to do this, when I showed him how easily it was to make sure it came out this way he was shocked that our other electrician told him this.
Little details like this can get you more work, and its easy to do on the fly on the trim out in romex or if pipe you use different colors for the travelers, for pipe I use a light orange and a dark orange for my travelers so I can do this every time.
Just reverse the travelers on the opposite 3-way switch, but pair them across the 4-way so the same color is on the same side of the switch on the 4-way, and as long as you always put the switch in with the ground terminal down it will always come out like this.
My SOP is to wire & make-up & trim so all the switches are down when the lights are off. This way, when I trim, I can turn the breakers on and know the lights should be off to start with.
If a light is on when I walk in, I know something's amiss.
He seems to think by inverting a switch or reversing the travelers will solve the problem. I have tried to explain this to him but he is not convinced.
A lighted switch works good for that. I also put in switch guards for motion lights with switches if they are right next to a different switch.I find if all the switches are down on a three way and the light is off then it is easy for the homeowners to know if their motion sensor lights are on or off. I generally don't like putting motions on 3 ways but sometimes they insist. The method above will help with this issue of not knowing if the motion lights are off or on.