"You should be aiming to finish within that range and struggling to do so. If you feel that you could go on for another 5 reps, then you’re working too light."
A tip I've found helpful is to pay attention to the speed of the concentric/positive portion of the lift (when you're pushing against gravity). If you're slowing down, you're probably close to failure. If every rep is the same speed, you're leaving reps in the tank.
"You should be aiming to finish within that range and struggling to do so. If you feel that you could go on for another 5 reps, then you’re working too light."
A tip I've found helpful is to pay attention to the speed of the concentric/positive portion of the lift (when you're pushing against gravity). If you're slowing down, you're probably close to failure. If every rep is the same speed, you're leaving reps in the tank.
Great advice!