Shimano Saint bleeding

Hi all I have a set of Saint M810 brakes fitted front and rear to my bike and they are super powerful but...the lever travel seems excessive... as in you pull maybe a 1/3 of the travel before anything happens.
I havent used Shimano hydro brakes before but have used Hope religiously and always had a solid lever feel.
I have tried the screw on the top for free play and it helps but is marginal and I have bled them how I would normaly which is usually fine.Just to add the brakes are new as well and correctly centered.
The only thing I havent tried is back bleeding them..Should I try it? Thanks Russ.
I havent used Shimano hydro brakes before but have used Hope religiously and always had a solid lever feel.
I have tried the screw on the top for free play and it helps but is marginal and I have bled them how I would normaly which is usually fine.Just to add the brakes are new as well and correctly centered.
The only thing I havent tried is back bleeding them..Should I try it? Thanks Russ.
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when the pads touch the rotor is the lever solid?
Parktools :?:SheldonBrown
whilst they feel a bit soft when your car park testing. Out on the trail they will feel 100% spot on.
I found that the free stroke screw hardly did anything on mine.