Joe Bob, I like the Eclipse Dart- it is pretty light and it has a hole through it for adjusting the lug (not that that will come in handy very often, but it's cool). It comes with a delrin pin, which it like because I have seen e-cockers with metal pins chew up the back block over time. I also like the Freeflow Nylatron. It is slightly lighter than the Dart. The Freeflow is venturi face, the Dart is open. The Freeflow has an open airchannel whether the bolt is right side up, sideways, or upside down. The Dart only works rightside up. I am using the Dart currently. It seems to have less suface in contact with the receiver body- I am still not decided on how much difference this will make, but it feels smoother, moving it manually.
I am not as big a fan of Shocktech, Chipley or Orracle bolts. They are fine, in terms of workmanship, but they contain aluminum in the bolt, which adds significantly to weight. This will slow down cycling, precluding extremely high rates of fire that would otherwise be achievable with an eBlade or Race frame. The other benefit, which means more to mechanical cocker users, is that less LPR pressure is required to move a lighter reciprocating mass. Half the beauty of Delrin is the weight reduction.
Sorry so wordy. That's my story and I am sticking to it.
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