I think it was the campus exploiting free student labor tbh. We spent 2 days doing every hedge in the school

It was the lecturer stressing the importance of cutting back to growth points, but it's the kind of thing where as soon as we leave the classroom it's back to swinging off a Stihl 2 stroke.

I had to trim bushes with these and a stringline at arborist school. Twas painful.

WD-40 works great too. I use it to clean milky sap off my Silky Zubat and Gomtaro