Nice to see you back! Well, I´m no expert, so take this with a grain of salt. Could be the grind, I generaly think that new straight razor shavers get better shaves with a 1/4 hollow ground and a round tip blade. BUT it´s very induvidual what works.
The angels: it can be take time to find them, especially on hard to shave areas, like the chin and neck. It gets better with time though, you get some kind of muscle memory re how to hold the blade - but this you need to work/practice on, I think.
I think it´s wise to work with the tip area of the blade, I find it to give better control too and that´s how I do my chin aswell (except for WTG strokes, then I pretty much use whatever lather free area of the blade that´s aviable).