Feedback on the New Delta XT: The most noticeable difference is the increased grip this allows the use of up to 3cm smaller fin than the original delta. Guys have gone out at Budgie with a 16cm Delta XT on a 90l slalom board with a 7m Race sail and had more grip than they got on the 19cm Delta they would normally use, This allows them to access the really flat shallow weedy spots at budgie which is particularly shallow and weedy at the moment.
The increased grip is also felt in rougher water with the fin holding in and having the ability to be pushed on the fin.
Another point noticed was that it doesn't change the trim of the board much, compared to conventional weed fins.
The reduction rake has not been too big an effect on the ability to spill weed once planning the weed slides off. It is a bit harder to get going in the thicker weed spots and there is a little bit of a tug as there is with the original delta when sailing over thicker patches of weed. I think the increased rake at the tip of the fin helps to encourage the weed to slide off.
Now we just need the strong westerlies to start to see how fast it will go.