First of all I love savage rifles. I collect 99s and I have a 340 in 30-30. All are very accurate. I prefer the two-piece bases. My father is a machinist and says they are better but I can't explain why. Something about heat and metal expansion. I wouldn't go the QD route unless you were going to remove the scope regularly. I have QDs on my t/c encore and they catch on briars and look goofy to me. It really depends on your usage. I hope this helps.