On a positive note, we were visiting daddy's parents yesterday and grandma had the trick to getting baby to take the bottle finally. (We still need to supplement since without it baby is loosing weight and the SNS has become a bit of a problem.)
Grandma put a tiny dab of Karo Syrup (corn syrup) on the tip of the bottle nipple. Now I don't necessarily like using corn syrup for such things, it is a tiny amount and we have been able to let daddy supplement now using expressed breast milk and achieve a positive weight trend again.
Nipples are still really bruised and baby is not able to transfer milk well enough on his own yet.
The Bottle nipples we are using are the Kiinde Active Latch nipples that I've read a few reviews that they seemed to help babies get an even deeper latch when put back to the breast. I don't know if they help reduce the compressions I'm experiencing (probably not) but I don't know if there are any bottle nipples that would be any better for the purpose. We have only been giving 1-2 oz at a time by bottle either just before or after nursing (trying to keep it changed up and only supplementing in the afternoon/evening for the most part.) Total supplement yesterday was 6 oz (only about 1 oz was formula from a bottle mixed up the day before.)
I managed to pump 6 1/3 oz yesterday in only 6 pumping sessions.
Today I've already pumped 2 oz overnight and I have 5 oz frozen so hopefully we can continue supplementing with just breast milk for a while again. (The formula affects his bowel habits for such a long time after he gets any though it may take most of a week to get back to normal after only about 2 oz of formula.)