76% is certainly closer to 100% than 20% that's all I meant. I haven't memorised the exact numbers (thanks for adding that info) but my main point was some simple HR: a regular dose of oral morphine can easily be a high dose of plugged morphine. And just as I thought, 30-76 is a HUGE variation, so if someone has never done it before starting on the low end is the smartest idea.
If I take morphine orally I can easily do 100-200mg and be fine. I'm pretty sure if I plugged that dose I would face a real chance of OD. The increase in BA is significant enough that the dose needs to be significantly reduced. That's all I'm saying.