I agree there has to be an easy starting point, and I suppose yours is good as good as any ;).
I think that for growing the settings you propose are too conservative, maybe not for the first 4 sessions, but with those settings your technique cannot evolve into the techniue required for more advanced foiling likethe early planing why we all buy a foil in the first place, foiling jibes, foiling 360's or even foiling tacks (which require a ****load of frontfoot preassure to keep it flying with such little speed). I'd always recommend the at least the mastfoot further back, for a racing foil between 105 and 111, for a freeridefoil 105 or further back, very much depending on the model of the foil and type of sail and size used. You seem to forget that not necessarily the front foot, but the mastfoot is the forward point your balance hinges on. (sails with the preassurepoint further back or higher up require a more forward position, sails with preassurepoint lower down or further forward require a more aft position, and it is a matter of as much as 5cm sometimes)
I believe these settings work for your setup, and that they work for others who just began as well, but it is definately not what I'd recommend to anyone trying to improve their technique after the first few sessions. Instead I'd recommend more frontfoot preassure and to go out in more marginal winds, gradually building up the windspeed instead of down.
look at the setup below: the frontwing is about 3/4 between the straps, straps quite close together, I'd say less than 40cm, and my mastfoot quite far aft. (I ride my frontstraps and mastfoot another 4cm further aft now than in the picture). Because the wing is at 3/4 it allows me to comfortably sail with my backfoot out of the strap at 1/2 between the straps, meaning I have plenty of power to foil through jibes and 360's, I've even made 2 fully foiling tacks already with this setup.
Sailing with a setup like this (maybe not as radical, but close) will learn you the correct technique faster. Ofcourse the setup is way more powerful with the straps and mastfoot further aft, so it'd be better to begin in less wind to keep control and learn the proper stance (being overpowered might feel way too much in the beginning with frontfoot preassure if you are not a freestyler). In the end progression will be way faster. I have been giving foilclinics for over a year now and get my students up and flying in 8-10 knots with a 7.0 their first session, and sailing quite stably after 2-3 3-4hour sessions. One of my students now regularly comes sail with me and is starting to steadily fly through his jibes after only half a year.
Do with it what you want, I still believe settings are way more gear dependend than you make believe, and therefore would not dare just say "wing at 1/2 between straps and mastfoot at 44inches", I'd recommend letting an advanced foiler trim your gear and if that's not possible look closely at the production video's on youtube and try to copy their settings to begin.