Detent realy sucks with halo b
no dwell adjustment
Let me explain the thing with the 2 high pressure regs. I use co2, which you all no sucks compared to nitro. Thing is I cant get nitro filled in my area, and co2 is cheaper, considering I already had the tank when I got my BKO. So, in order to avoid damage to the marker I got a $5 anti siphon tube for my tank. Then, to improve upon co2's terrible consistency I bought an inline palmers stabilizer and connected it to my bottom line. I keep the palmers set at about 500 psi, and use the black magic reg as a normal hpr. By doing this my consistency is pretty good, great when compared to regular co2 setups but still not quite as good a nitro, but close.
As for the gun, its SWEET! it is very fast, so you'll need either a z-board egg or halo b. the trigger is very adjustable (3 way plus 3 different pivot points) and the frame is really comfortable. The stock barrel is like any other, it works. I recommend a barrel kit so you can maintain the best paint to bore ratio ( and therefore the best accuracy) when using different brands of paint. Of the stuff I've used, PMI big ball seemed to work the best with the stock barrel. The best thing about the BKO is the price- $320 for a high quality electro is a great deal.
Weaknesses- The thing that bugs me the most is the ball detent: its not a ball detent. Its an oring detent, and there is only one of them. 2 oring detents would prevent force feed double feeds, but there's only 1, and my halo double feed all the time. I found a SOLUTION: go to ace hardware, buy some orings of different sizes, and use one of them instead of the stock oring.
The only other weakness I've found is that there is no dwell adjustment. In order to shoot around 295 fps, I have the hpr (the black magic, the palmers stays at 500 all the time) set at 250 and the lpr set around, say 95 psi? there is no guage for the lpr so its an estimate, but its supposed to run at 90 psi, and I have mine 1/4 turn further than were 90 should be. This leads to ball breakage do to the higher than normal pressure. This normally would be corrected by increasing the dwell time (and lowering the pressure), but you can't do this on the bko like you can other guns. My solution to this will be the OTB blind bolt when it comes out and eventually a vapor valve to lower the pressure. I'm not sure, but it may be possible to get a chaos board and adjust the dwell using it.
If your thinking about buying a BKO, stop. Just go out and buy one. It is deffinitly the best value for the money. Its a very reliable gun- won't let you down if you take care of it. I give it a 9 out of 10 because of the lack of dwell adjustment. the oring detent was an easy, 29 cent fix.
Btw, u can get the gun to go above 295fps without having the lpr at roughly 95psi. If you turn you hpr's psi up more, it will also give u a higher velocity. This way u can run the noid at its designed pressure -90psi.