thanks for the replies, will have a closer look at both your plans bhagwan & dingoboy over the next couple weeks,

bhagwan as to the selection method, it is a fairly simple formula which uses 1/2 dozen form/race elements as well as the horses price as close to jump as possible, & as such usually throws up the 1st/2nd/3rd fav but snags value at times with the largest unotab div to date of $3.10 (got $4.00 on betfair).

the only drawback is that i need to bet as close to the jump as possible so must be chained to my pc most afternoons.

also i am running live trials on unitab & betfair & its interesting to note that so far betfair out returns unitab by a minimum of 5%, often more (i was very wary of the whole betfair concept but so far am quite impressed)