Hi Peter,
ARCTOS actually saturates at just over 4V, so that can not be the problem.
There could be a few settings including what we call "minimum points" that may be influencing your specific case. Also, don't forget that each and every frame may reference one of three "palettes" that we automatically generate, including a "fully saturated palette" which gives priority of color rendition over raw power. Other factors may include the exact program material that you are evaluating. If, for example, you are putting out just one little point and trying to call that "a beam", there's your problem. I won't go into it here and now, but there are right ways and wrong ways of creating "a beam" and just placing a single point in the LD drawing window is "the wrong way".
Rather than go back and forth through emails and forum chats, I would rather just troubleshoot this on-site. I will be in The Netherlands (where you are) in early February hosting a Pangolin-like meeting at Hugo's place. What I suggest is that we get together then and examine your system and then come to a conclusion based on solid science using scopes and power meters, not speculation based on something as subjective as your eye (which by the way, has a response curve which is highly logarithmic). Not meaning to put you down but, since you are relatively new to Pangolin, it could be that there are a few "projector settings" within LD that you could be setting to a better position, or a few "tricks and tips" that you are not yet aware of regarding the creation of program material.
Once I have examined your system and we have come to a solution, I will be sure to let everyone here on the list know what the problem winds up to be, both to clear up any speculation and also to enlighten everyone of what to keep an eye out for.
I will say that I am confident in our software and hardware as literally thousands of professionals all around the world use our system, some alongside competitive systems. If there really and truly was a problem, I think we would know it by now...
Bill