I have an update for you on the Laying service Punters Profits.
August was a losing month but September a winner, especially betting to liability:
Aug = -16.71pts @ 1pt level stakes & -19.15pts @ 5pts liability
Sept = 22.93pts @ 1pt level stakes & 64.71pts @ 5pts liability
They have also included bonus selections into their daily email with more selections and the average odds are lower.