That is true, especially if you are using the hilti as it doen't have the brake of the makita. As with everything a bit of experience and care soon reduces that problem, we are still tradesmen after all.
---------- Post added at 02:42 PM ---------- Previous post was at 02:40 PM ----------
Also Damo if you change the order you do things it can speed up erection time as well. A spanner man putting in the squares and an impact wrench filling it in is the way to go.