Hello, firebirdfairy, and welcome to CriticalDance! I like your name! Yes, changing your pointe shoes to another brand right before the show was adventurous on your part. Pointe shoes are expensive, and Freeds don't have a long life. If you're in a company and they are paying for your shoes, it's a different story! It sounds as if you are adjusting to your new shoes. You may have hit the nail on the head (so to speak

) when you say that perhaps the shank is too wide and thus your foot may be "sinking" into your shoe. Gaynor Mindens seem to have many options, so perhaps try a slightly narrower shank? Here's a trick I used to do for bruised toe nails: Buy Dr. Scholl's foam callus cushions (for the big toe nail) and smaller round foam corn pads for smaller nails. Cut in half. Place the 1/2 pad curved on the skin right below and up to your nail. Keep in place with Johnson and Johnson's cloth tape. This completely takes the pressure off your toe nail without feeling like there's a lot of "stuff" in your shoes. I'm wondering about your "bourree disaster" comment...This makes me think that you might be "going over" too far in your shoes and not feeling like you are "pulling up out of your shoes"? You do say you have strong feet...
I think it's challenging to switch shoes, and it definitely takes some adjustment time. I switched from Capezios to Freeds when I joined San Francisco Ballet. It took a while to adjust, but I was SO happy I made the change.