Tag trailer or Goose neck whats shorter
 

The Goose should be overall shorter when hooked to the same truck right ? But witch trailer is shorter overall ? Say a Myco for a 43v Nortech .

If you are comparing with the same bed size...
 

...the goose neck trailer is longer.

If you are comparing over all length of the rig (tow vehicle and trailer) they will be very close to the same.

On a goose neck trailer the load is moved forward a bit which does make a slight difference in the over all length. I have used both and there are advantages/disadvantages to both.