England keeper Hart recently joined Torino on loan after being frozen out by new Man City boss Pep Guardiola, who prefers new style sweeper-keepers to traditional stoppers like Hart.
Bentley himself is learning more and more about the new goalkeeping trend, which former Bees keeper David Button became a fine exponent of before his summer move to Fulham.
Bentley has so far erred on the side of caution and opted more for long clearances than playing the ball out short.
But while his shot-stopping has been exemplary so far, Bentley is well aware that more than just saves are looked for in modern costodians.
He said: “It's all about the situation. I'm not a keeper who borders on the side of recklessness, I try to make educated decisions made on each situation.
“I try to treat each situation on it's own merit, you won't see me coming out chasing hopelessly for balls that aren't mine.
“But goalkeeping is not just about keeping the ball out of the back of the net. The saves are my bread and butter, but I'm very much a believer in the all-round keeper who does everything
“It's an all round game, and I don't just look at the saves. I look at each individual kick and throw, every cross that comes in and my positing throughout the game.
“I read a lot about Joe Hart and a lot of it is absolute nonsense, but who can question one of the best managers in the world? if Joe's face doesn't fit at Man City there's not a lot you can do about that.
“He's still a quality keeper and has been at the top a long time now, but all round goalkepers are the keepers of today. Is your distribution good? Is your kicking good? Can you make saves? Can you take crosses?
“I keep seeing keeper sweeper bandied about, and it's used a bit tongue in cheek for me. You look at Manuel Neuer, who's setting the bar for goalkeeping at the moment.
“He's where it comes from as he comes out and plays like a sweeper. He's the best in the world at the moment, but not every keeper will be like Neuer.
“It's not about trying to be like the next guy or the guy whose the best, it's about making your game your own and doing things that suit you as a goalkeeper, and suit the team and the manager.”