Nose of Prologo seat slightly too wide – suggestions please

After a long (and slightly expensive!) search for my perfect seat I appear to have found something close – Prologo Scratch HWD. Finally my rump feels comfortable mile after mile on a fairly lightweight seat ….That was until I was riding up some mountains this weekend and found the transsition from rear of the seat to the nose to be a little too wide for the back of my legs (lots of rubbing when really putting the power down).
Any suggestions, please?

I’ve already been through the Fizik range (Aliante being fine on the nose but not as comfortable as the Scratch for sit bones)