Eventually the average pressure on the bit will become less as you make progress in training.
But that depends on the degree of collection and how much weight is being distributed from the front legs to the hind legs.
And that’s a process you can’t influence of force by changing the head-neck frame.
Or by ‘making your horse soft’ or ‘bending your horse to one side.’
In order to get the right connection and the right amount of pressure on the bit,
you want to ride your horse from back to front
Or to put it in a different way, by riding the body of your horse towards his head.
If you do that and you take a light contact, without making a head-neck frame, you’ll always get the pressure that suits your horse in that moment.