So I may have sorted this out, on a really nice sailing day yesterday. I'd been doing reading online and initially set the straps narrower/higher so just the toes were showing, and I did two runs before coming in to fix it, as with any pressure at all my toes would jam in by the time a turn came up. I cam back and just made them super wide and loose (like 1" wider than my foot) and in another 2hrs of sailing only had one issue at the end.
Pics of current setup which I was thinking was great unless you guys see some issue with it. The only potential problem I could see was less ultimate control, and the possibility of getting the foot too far in the strap, but the latter wasn't an issue except on my own big crash and it still came free on the way down. Yesterday I was able to use the heavy boots on the right which is great as last year the only boots I could get into the straps were the 3mm Oneill ones I had previously used as water shoes. I tried putting some PTFE tape across the top of the Oneill ones without much effect, but yesterday had much better luck and a safer feel with the heavy ones.
As to going faster, I just had an AWESOME day at Silver. First day in a long time I've felt overpowered, as me and the other guy out there were both on 9.5 and got pretty worn out as the wind really built for the last 20-30mins. Experienced spinout for the first (and second, and third...)time which I know isn't a good thing but it was nice to know how it felt and how to respond. On the very last run of the day I had the single best bit of sailing I've done. I was taking a breather on a little sandy point, and realized I had to get going to get the kids, and the beach was quite far downwind, probably 130deg true wind, and I got to/had to absolutely send it. Got my first couple jump-like things where the board completely left the water off a wave and came down somewhere else, and my buddy was watching from a ways away and was convinced I'd just won our 25kt bet. Sadly, insta360 is acting up so didn't catch the massive crash I still don't entirely understand, and my wetsuit sleeve kept turning the GPS off, so right before the run I'd hit the button thinking it was off, and naturally instead turned it off. Still had an absolute fine time and am really feeling like I'm getting better this fall. I think with a smaller sail that I could sheet in more I could have hit 25kts. Going forward I think my attempt is going to consist of having a longer day on the water (I always seem to suck for the middle of a session but then get better about a half hour before it's time to go), probably re-rigging if I'm super over or underpowered, and making sure I'm aiming quite broad towards a run and then just sheeting on. I also found today in the lulls I could go quite quickly by putting a lot more pressure on my back foot it seemed.
Thanks for the tips Reid.