Could work but chose the 10 tipsters wisely even if you use Best bets, Sportsman , Winning post and your local paper and pick the best 10.
PPm had a system where you picked 10 tipsters and only backed the horse if it was more than 10 points ahead of the nearest horse. Thats giving the tipsters selections a 3-2-1 points allocation.
Would think that the selection would'nt be all that great value wise but had a good strikerate.
But if it was running from an outside barrier maybe it would be paying alittle more.

How long have you been following this system ?