....but those with SilverScreen, wind your Springs....
Seriously....., there is no way to compare SS against such advanced DIY mixes without conceding at the start that there can be no real obvious comparisons. other than both SS and Silver Fire both share a "gray hue", and being a very good neutral Gray, SS will more than adequately perform it's duties when graced with the illumination coming from a Panny AX200u.
The real choice is the degree of effort you want to make, as in reference to what level of performance you desire.
S-I-L-V-E-R might not be suited to your choosing, because it is in essence a "Dedicated Dark Theater" application. If indirect lighting is kept to a minimum, and is not directed toward the screen's surface in any way, it can and does present a very color rich image with a 1000 lumen PJ. But if there is ambient light present, the black levels will take some degree of a hit that is more pronounced due to the fact that the "silver" will collect the Ambient Light as well as the projected light. With a AX200u, calibrated to achieve it's best possible Contrast, you'd put out about 750 actual lumens at most
. That would then deliver a STUNNING image on S-I-L-V-E-R in a dark room, exceedingly 3-D like and with "rock bottom" Black levels. With a couple of highly directional, downward firing "Spots" located in the rear of the room over the seating, you could get by quite nicely tolerating the slight lessening of the deepness of the "blacks'.
Silver Fire is a mix that send Blacks straight down to the "Sub Basement". So far, nothing "DIY" has been shown to top it's performance in that regard. Them's the facts. And with adequate Lumens, you will not begin to notice that whites get every so slightly attenuated. But the Colors are virtually just as vibrant looking as S-I-L-V-E-R when viewed in a Dark Room setting, and are far, far
better in any degree of ambient light. Lastly, SF in a hue that matches SS increases perceived CR so much, it'll make a PJ with 6000:1 look like a 25K:1+ performer.
It's neither all that expensive or difficult a DIY application to accomplish, nor is S-I-L-V-E-R for that matter. But both do require spraying onto very smooth surfaces.
Ok...but what about Silver Screen?
Most know, as does BCortez, that I am a Fan of SS, for in it's essence it is the singularly most simple and effective One Can Solution for a Digital PJ owner to look to, if he wants to improve Contrast, obtain some ambient light viewing potential, AND he has the lumens to "git-r-dun" right. Those who have complained the most ardently about SS's attenuation of lumens are those who did not have enough available Lumens to really consider a Gray Screen application in the first place. But what they were most after were "better Blacks", and in that respect, SS never let anyone down.
But for many, a DIY Screen MUST "PoP"
no matter what. A "SS Screen" (...ahoy!) can do that for you with that Panny....I'm a tellin' ya.
Here's the pitch......,
Try that "ol SS" first. Goodness knows it's not a big financial hit, and in doing so you both observe what a difference even a basic neutral Gray can make, and you can get in some practice at "DIY Screen making". Moving on "up" later will be easy enough with the acquired skills, and if you do your initial job well, you'll have a ready made, smooth surface a'waitin'.
Of course, since you'll save so much loot going the "SS" route first, spend a little of those savings on a Wagner Control Spray unit, and do the Silver Screen application right, and thereby give it at least the same advantage that the other too more advanced, and complicated (SF anyway) DIY solutions would enjoy. You'll be glad you did...I "Garr-ran-teee"!