Thank you Damian, I agree with that. After going through hundreds of posts here and on Decent basecamp this week I've been convinced by you guys that the taste is ultimately what matters. If the graph looks awkward or even ugly then fixing it may improve the flavours but don't over-worry about the graphs if it tastes good anyway.
I've settled on this fan profile which seems to stabilise the ROR quite well before and after FC, and the power line is steadily increasing as advocated by Steve.