I'm curious what your use case is that you like the centre dot and wouldn't want it any smaller?
As is what sort of targets are you shooting, or shooitng discipline, and at what magnification?
General training with a 5.56 GPR.
I run an offset dot set up in such a way that it is my primary weapon sight, the MPVO is there to immediately give more magnification OR as a backup if the red dot should go down or I'm shooting from a position that would be awkward to mount the dot.
One example of a drill I like, and that I use to evaluate MPVOs because it is beyond the precision range of a red dot yet requires rapid acquisition off difficult targets under stress, I call "offhand precision", a simplified version of a 2gun stage I shot.
keep in mind I typically paint the targets to camo reasonably with the background, I'm not shooting freshly painted white steel.
Basically you start 100M from 2 targets, one 8" one 12". You advance through a series of 8 positions and take one shot at each target from each position, such that you are having to rapidly move, take a precise offhand shot, move to the next position, repeat. Each position you switch between engaging the 8" target to the 12" target. This drill teaches a lot in only 8 rounds (if you don't miss).
Do the math, the smaller target is exactly 2 mils and the larger 3 mils. The 2mil circle should be perfect for rapid acquisition of these targets right? Well what I found is it wasnt. The thin circle was too hard to rapidly pick up against the brush-cluttered background and camoed target, and as I get out of breath from shooting multiple runs this only gets worse. By contrast the pa griffin reticle was great for this, with no illumination.
On the other end of the spectrum, consider using the scope where you would prefer to use a red dot or 1x on an lpvo. I often practice shooting from the low ready, at targets ranging from a uspsa a zone at 7M out to a 50M 4" gong, with agressive par times.
Here especially the Helos was was slower than the PA Griffin and less precise, and I actually had better results turning it up to 3x to acquire that circle more rapidly. By contrast the pa griffin is consistently within about .1s of a red dot.
On the other hand, when it comes to precise shooting with a gas gun the 1moa circle is excellent. Are you shooting targets that are sub moa? Under realistic stress and time pressure? I sure cant!
This is where the Helos beats down the PA Griffin, its 1moa dot allows far more precise targeting than that bigass chevron, yet is visible at all mag ranges.
It isn't as good as a true precision reticle with markings around the center to spot and correct your near misses, but that would be a tradeoff I'm happy to make all day IF the reticle allows lethal speed in the type of dynamic shooting described above.