Hope brake seals leaking

I have just replaced all the seals in my Hope DH4 caliper but it still leaks? It just keeps contaminating the pads and disc now. I inspected the pistons when I took it all apart and they all looked fine. When you pull the lever you can see a small amount of oil circling around all the pistons? They were supposedly the right seals and they fitted fine, nice and tight. Any ideas???
0
Posts
Or is it just residual fluid that is just sitting there and needs cleaning away.
Parktools :?:SheldonBrown