The stones vary in weight and size, but they generally go from 100 kilo to 173 kilo.
Strength helps but stone lifting is primarily technique and speed.
I got my set of stones to begin training for the 2000 season. I am not much stronger now than then, but then I could barely move the 220 lb. With much training and an improved form I can now place my 365 lb. I personally hate not being able to do something and thus I have watched a lot of film and practiced what I saw there. Within this article I will try to pass on what I have learned.