ESettrer1
I have shot a 3 pin flatliner ,5 pin flatliner,and now have moved up to a 5 pin .019 Metal pin Matrix.And soon will be fixing up with the new Guide Series Matrix.I first had problems with the butterfly nuts (not getting tight)windage,elevation.
Solution
go with regular allen bolts so you can torque them down .Second flatliner pins are plastic small twigs can enter the sight housing and break them ,solution buy metal pin version.I have shot 3D ,and hunted with these sights .I have heard lots of opinions.
I personaly will probly not change sights for a long time if ever .
What i like about these sights
The vertical pins.
The easy pin adjustments most of all!!
It's built to be tuff ,and is dependable.
The fiber optics are great as well.
If somthing breaks that was beyond your control mail it back they will make it right i;m sure.
Hope this was helpfull [