"They lay out bigger bets when the cards are good for them"
No,actually what they are doing is laying out big bets when they've won a few hands in a row.There is a very good possibility they won because they were getting the good cards from the deck. Now,those cards are out of play but they have a big bet out.
An example
Player-ten,ten Dealer ten,nine
Player ten,ten Dealer ten,eight
Player ten,nine Dealer ten,six,ten
pllayer nine,eight Dealer ten, six,nine
You have won four hands in a row,will have a bigger than average bet out,but the deck is heavily stacked against you.
Player,eight,six,nine Dealer shows a Six
Player eight,five,three Dealer six,five,three,two,five
Player eight,nine Dealer, nine,six,six.
Player Ten,nine Dealer five,six,four,six
You've lost four hands in a row,will make a minimum bet and the deck is so stacked in your favor,it might lean over.
Not the same thing at all.