The kids tend to wimp out when squeezing, so the ratchets at least assure a better consistency. Now to get the right wire sizes into the connectors! My freshman hammerer didn't hit the "big" one hard enough the first time and "wasted" a #6 lug. The rest of the room was surprised when I demonstrated the "proper" use of the hammer.
So only tug testing was done. I hope I emphasized pulling on every crimp as their first level of confidence in their work. Take time to do it right, you might not get the time to do it over. I'd show pictures of the results but they're all installed now. Next project - strain relief!