I find the Quick Link Sets to be very helpful since I change ball heads and fluid heads frequently. I use two different sizes: 60mm and 70mm. I have the 60mm base plates on my lightweight, midweight, and travel tripods. I have the 60mm connector plates correspondingly on my light and midweight ball heads and fluid heads. I use the 70mm sets on my large tripod and 362 low style Leo tripod for my full size heavy duty ball head, fluid head, and gimbal.
Changing heads in the field is quick and easy. The base plates and connection plates attach very securely and I have never noticed any wobble or undesired movement.