But on the convex front edge of the seat, I would reach for my flat scraper and work diligently to get a clean shape. The small contact area tends to leave "stripes" and makes a tough job even harder.
So recently I ground a flat blade with a concave edge and have been thrilled with the results.
You can see that it makes contact more fully and by slicing across the grain, I get a clean, even shape.
I actually look forward to working this area. To make the blade, I simply set my toolrest on the grind 90 degrees to the tangent of the wheel and slowly cut the shape. I'll be showing a great tip for filing and honing the edge next.