The scope I have doesn't have a tree reticle so I'll be able to see if that style works for me. I've had it for years just have not used it much but plan on using it for a while before I get a new one.
Revisiting this thread this morning - one thing which has seemed to make significant difference for many, many PRS shooters, to the point of bringing nearly universal agreement, is 0.2mil windage hashes on the main stadia (and open dot centers). Not all companies achieve this in the same way, so differentiating between "useful 0.2mil hash marks" and "less useful 0.2mil hash marks" is also worth discussing.
Over the last ~6-8 years, most of the change in PRS competition has been refinement of the target distances and target sizes, and most folks will agree, targets have gotten proportionately smaller - and of course, this happens because the shooters have gotten better at the game, so the challenge had to escalate, and missing 2 shots on a bad wind call because you couldn't precisely measure the correction for the second shot has become a determining factor in match placements... So guys want "Useful 0.2mil windage reticles." **I'll also note here, that these changes are why most of the top guys are not taking the risk of holding down in the christmas tree or ever holding in open glass like we might have done several years ago, and why the "dial once" stages have been removed from courses of fire - the targets are small enough and the penalty of imperfect corrections (even correcting position of impacts on plate) is too high
Comparative examples: The Kahles SKMR4 has 0.2mil windage marks with an open dot center, but the X.2 and X.8 mrad hashes point down only, with the X.4 and X.6mrad hashes being both up and down. This gives the shooter recognizable reference to immediately recognize 0.6 vs. 0.8, and faster reference to hold incrementally between hashes. Alternatively, the Athlon APRS6 uses the same up and down hash marks for all 4 interstitial marks between integer hashes (and they don't have the +/-0.2mil hash line, just the end of the stadia line before the open center). So with a splash in space, it's a little more difficult to recognize and measure on the clock just where the correction should be held.
Kahles SKMR4
Athlon APRS6
And further comparatively - just to illustrate the difference in race-ready, recognizable reference data - here's an illustration of the Bushnell G3 reticle I used when I started, which only offered 0.5mil increments and a closed center. Measuring splits between hashes was only useful within that 0.25mrad "float" falling roughly in the middle of the 0.5mrad gaps, so correcting from a splash to send the next shot still just off of the edge of the plate was that much more common. (No number indicators on the left side kinda sucks also, as we find ourselves counting hash lines on the clock, while the wind changes, instead of simply reading the splash and sending corrected shots). In this comparison, the 0.2mil reticles above can place 3 hashes on the average target at a PRS match (one center, two riding the edges). The older style, less refined 0.5mil increment reticles meant about 1/3-1/2 of targets were smaller than the gap between hashes, and we can only ever fit 2 hashes on a target together (bracketing left and right sides of the plates). So measuring corrections to center shots on the plate is much easier with the 0.2mil reticles.
Bushnell G3 reticle
Throwing another comparison in the mix, the Nightforce Mil-C which is a non-christmas tree reticle, but does have 0.2mil hashes, versus the Nightforce Mil-R which does.... well, kind of a really, really weird thing, with 0.25mil increments of alternating gaps vs. hashes... I think a guy either needs a lot of time, or a LOT of practice to be able to effectively deploy the MIL-R, and I would advise against it for PRS use (plus the closed center).
Nightfoce Mil-C
Nightforce Mil-R
Granted, none of this will take someone from a 25% shooter to an 75% shooter, but most of us recognize that we pick up valuable points by using a 0.2mrad windage reticle over less refined reticles.