I also put my footstraps extreme to the back and out.
Mastfoot rather far to the back. Never experienced excessive pointing nor uncomfortable reaching nor uneasy downwind sailing. It all goes very smoothly.
With my 87kg, to make the planing even earlier in very marginal conditions, I use a 10.9 sail in combination with a Deb R12 64 fin. Especially the R12 works very well for me. I think because it's very soft.
IS87 / IS101 / IS122 / US147