Check out the cool pictures:
Professional 5th wheel blocking for the new Holland FW17 series 5th wheel
This is on a 2014 Pete with short stand, both tall short and long short
The advantages to this method are numerous.....
1. strenght is utilized by capturing the slider assembly
2. one piece pin for maximun strength
3. one weld to stand that says "DO NOT WELD"
4. the weld to stand is for locating only, not holding power