I didn't really think much about the hunting aspect of it as I sometimes carry and AXMC with me to hunt, even in the mountains. However, KY gun co has the "lite" version of the MPA in stock as well and its cheaper than the MPR. I don't know the exact weight as the word "lite" is subjective, but that's where I would put my coin.
Lenny has a proven hammer of an MPR as you can see in the recently resurrected thread where people are complaining about MPR accuracy issues. He provided a real world accuracy report, not a cherry picked and unrepeatable single group that has become the internet standard for an accuracy guarantee. So it seems they do have some great shooters in the field, of the 22' variety anyway. However, the others with issues could very well be more of an Indian problem than the arrow, but I like to give people on this site the benefit of the doubt. I will end with this, try to find a thread where people are complaining about accuracy or customer service from Phil/MPA, there is nothing worse than dropping hard earned cash on something and then being dissatisfied with said purchase.....besides dick cancer!