The SP-1 Is the better marker. The SP1 does not have a double trigger or look as Milsim, but It will perform as accurately and speedily, https://sp8.dance if not better than the SP8. With cost in mind also, there is a several hundred dollar gap between these two. For still less than the SP8 you can buy a SP-1 Blackheart, which won the 2009 TechPB best woodsball gun award. For the money you could also buy many accessories to make the SP1 either more milsim or perform better.

The SP8 is just an ION with a XM8 body kit. The ion series have many faults and can be very temperamental with slight problems. Also it a fairly heavy and bulky gun.