I really like the old super chatel course under the Chatel Gondola.
You can take the fire road off this about 1/2 to 2/3rd of the way down to take you about halfway to Morgins.
The Morgins DH trails were gret last year, but the section form Morgins to Crosets is Stunning (Stunning looking, the riding is OK) you can then either take the Lift from Crosets to the top of Mosettes and descend into Lindarets or back to Morgins, they’re both long, fast, epic runs.
YOu’ll need about 3 different trail maps though. THE PDS route will give you a good idea of the area which is a great help.