Clay can be bad and sandy Clay aswell it's worst I'd say when water logged pushes them beds back
Your out 3 plus times a week soak and rub about with my fingers is the most ill do around beds you aggrevate it you have that niggle all season
If you soak your hand and the used a tooth brush on your nail beds 3 time a week they would be sore aye after a month lol
And if beds are irrated just do's what that book said peroxide will get the muck out
It's all opinions as you say mate
I'll run the arse off them this season no issues I'll stick to what I know