How are the brake discs? If they look like LP records, they can result in a softer pedal feel than flat, new ones.
I'd check it's not just a partially-seized bleed nipple - maybe a pressure-bleed might help.
I've had problems bleeding brakes after a caliper change before - for some reason (ABS module?) it's a lot harder than it once was.
Nick
“I find myself irresistibly attracted to cars that nobody else buys. The NSX is a classic of the genre because nobody buys it and yet it’s a fantastic car. It’s got a wonderful compactness and simplicity and unpretentiousness to it. Honda rudely continues to make them whether we like it or not, even though there can be no commercial logic in doing so — I thoroughly admire that.” Rowan Atkinson