Hi guys, trying to get a board set-up & comfortable so as I'm not wasting time battling a wrong set-up.
I had a couple of goes on a 105L foil board & had reasonable success straight off.
I have converted a 120L 72 wide Free-ride board & moved the foot straps inboard.
I have installed 10.5" long US boxes to give me a bit of adjustment rather than have a fin box in the wrong spot for foiling.
Note: the US boxes are a tad behind the back of the power box so still go a fair bit in front of the box. (see photo)
I am using a foil that is proven to work well on a foil board with a competent pilot.

Yesterday I started out with the foil central in the tracks & mast base central in the mast track, this did not feel right, however it was the first time on this board & sail.
I then changed the foil to as far forward as possible & mast base as far forward to about 3/4 of track length.
This set-up felt better although it could have been that I was getting used to the new kit.
My concern was that the foot straps seemed a long way back from my foot position.
Today I'm planning to try the front strap, starting with the foil & mast base completely forward.
It is a big effort to get in & out of the water to make changes when you don't even know what will happen

Suggestions on starting positions would be appreciated.
Questions:
Mast base position, forward - back, what does this change?
Foil position, forward - back, how does this affect things?
Foil position in relation to back foot?
I want to work around the original foot strap positions for obvious reasons.

I'm sure this has all been covered somewhere previously but some quick basic answers could really help.