Muscle snatch + power snatch + full snatch, all with NO foot movement
You can come up off your heels but your feet cannot jump off the floor or shuffle.
The sequence going from muscle snatch to power snatch to full snatch is taking you from a movement where aggressive extension, that is almost over emphasised is necessary to the full movement where full extension can sometimes be harder to achieve, the muscle snatch drills extension and the power snatch helps bleed the aggressive pull into the full snatch at the end.
How to use this complex: as a technical primer before you do snatches and/or as a working exercise that you go heavy or to max on. If you find yourself cutting your pull short quite consistently I would advise both.
Clean & Jerk Complex
No foot power clean + clean + Jerk
This is my favourite way to actually warm up in competition and in the gym for heavy clean and jerks. The idea behind the power clean and no foot movement is the same as it is for the snatch. Create the need to exaggerate the aggressive second pull that MUST be finished or you won't even be able to rack the bar.
How to use this complex : again it can be used for warm ups and for a working exercise in itself, if you're struggling to finish your pull even at moderate loads I would do both.
Use these complexes to help you or your athletes understand what finishing your pull actuaally means and feels like then when some says to you "finish your pull" you know how to correctly respond.
Lastly the cues to help you instruct yourself or your lifters to extend and finish the pull consistently during sessions or competitions.
I'll throw a few out there to choose from since depending on whether you deal better with internal or external instructions.
Pull PAST contact - you have to keeping pulling for an inch or two after the bar leaves your hips or thighs (wherever the contact point is), like a big tackle or a knockout punch you have to push through contact not just to contact.
Quads and Traps - squeeze your quads and traps as hard as possible this will make sure you stand up tall and keep the bar close.
LONG Pull - sometimes just imagining or trying to pull for as long as possible will make you pull correctly.
Jump Through the Roof - jumping isn't a good cue for everyone but if it gets you to extend up properly then try it. Imagine jumping hard enough you and the bar would go through the roof.
NOW FINISH YOUR PULL!