Would you buy a windsucker?

[lizstuguinness]

feedmark do a suplliment called settlex i think. my mate has a windsucker and that worked, she also gave it feedmarks calmer. apparently recent reasearch has found that the horse is suffering from digestive discomfort.
which makes sense as digetive discomfot can lead to colic, and can aslo get worse when under stress - hence common thought that it is a stable vice.