There is a technique, best way I can describe it is a "slow steady pull, no jerking etc." when using torque wrench. It gets challenging when you are torquing head bolts "in the car" always more user friendly on an engine stand. Of course just my opinion.:) The more you can use the wrench at a 90 degree angle the better, if any other angle you need "torque adapters" to go with your Torque wrench. For example if you can only get on the bolt with a wobble extension, your torque wrench wont be accurate etc.