Sliding fifth wheel question

1-2 inches behind the middle of the tandem.
1 hole behind.
Depending on the distance between holes.

 

If weight is no issue, furthest forward would maneuver easiest. Like ACD mentioned above if your loading max

 

Further forward is better going forward but can mess with you going backwards…as you start the trailer heading one way it will actually go the other way briefly. It’s not really a big deal unless you’re trying to back down a narrow lane or something and make a small correction then you will notice it. I am also talking about having the fifth wheel close to 3 feet in front of the center of the tandem.

 

The shorter your over all length. The easier to turn.

Mine is quite a bit north of center. But that's how it's setup.

 

I've always set mine all the way back as soon as I get a tractor, and that's where it stays as long as I'm in it.
If you get used to and comfortable with a certain setting, I'd say leave it there and forget about it.
The setting that's best for you is the one you're used to, the one you've made 1000 turns and backs with.
But if you have it all the way forward, don't try any real tight u-turns in a drop lot.

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Is there an advantage to having it all the way back?

 

If it's all the way back you are less likely to crunch your fairings on a tight turn.

 

I always keep mine all the way back.
Makes for a better ride.

 

Makes a better ride, looks good and if you need to move some weight off your drives, slide your seat forward a couple of notches.