I strongly agree on the efficiency aspect.
With the deep liquidity now, you get a double edged sword:
-- when the market 'sticks' at a level (oscillating within a 2-3 tick range), you have more opportunity to enter/exit at 'your' price,
but...
-- the increased amount of orders means that there is more competition at 'your' price.
Which to me means that I find myself having to do more wait, wait, wait, wait, then strike.
With the deep liquidity now, you get a double edged sword:
-- when the market 'sticks' at a level (oscillating within a 2-3 tick range), you have more opportunity to enter/exit at 'your' price,
but...
-- the increased amount of orders means that there is more competition at 'your' price.
Which to me means that I find myself having to do more wait, wait, wait, wait, then strike.