I think after a few years of clipping experience, I can say that you want scissors that are really sharp, with small needle point tips. I used normal kitchen and office scissors and didn't really mind,
although I spent a lot of time just scraping them because they would stick. Last month I had a harvest and my helper was complaining about my scissors so I finally caved and bought some scissors
that were claiming to be for Cannabis. Holy shit, they make a huge difference, first off, they are comfortable, have loose action so my hands don't get tired, and they are black, and have some
sort of teflon coat on the blades. No more constant scraping, no cramping, really will never use a normal pair of scissors and can't believe I went that long using crap scissors.
The name of the scissors are pro420 and I found mine on Amazon, I think they are on Ebay as well. They have both the manual snips and spring loaded, they are great! Good Luck!