This drill is designed for a team or an individual. Start with 8 stones

This drill is designed for a team or an individual.
Start with 8 stones in the house positioned as per diagram.
Throw 8 hit shots.
Objective is to remove all the stones from the house and
replace them with the thrown stones.
Scoring
+1 for each stone thrown that stays in the house
-1 for each opposition stone not removed
SKILL
Hit weight judgement
Line call