feedback perfect practice makes perfect skills was taught to me
I have lost count of clinics I have attended over the years. All of them helped me do better paddling.

Two of the instructors whose coaching stays with me whenever I boat are Phil and Mary DeRiemer

Both are world class teachers and outfitters

My advice is get the best instruction you can get to learn what ever skill you want to improve

Then get the best way to practice that skill set from the best instructors

It makes no sense to me to practice and groove bad technique