Today I got my two Splinters, tossed them few times on a field and on the park.
DISCLAIMER: I'm quite average skilled disc golf enthusiastic (PDGA rating bit over 800), I throw Pure and Envy (currently my only driving putters) around 70m and max out with drivers around 100 meters. My throw has been quite a mess recently and when I threw Splinters today I didn't have any other discs with me as a comparison.
The pearly pink premium plastic H9 Splinter is very grippy, something like Prodigy's 400G but maybe even grippier. It is somewhat domey, but only from the middle, again reminding some Prodigy's drivers. Profile reminds me of Envy, but is it clearly higher (PLH is about 1mm higher than in Envy). Rim might be bit thicker also but it's hard to tell because of the overmold of Envy. It is rated 3 3 0 2 by Obsidian Discs like Envy.
Black very soft G9 has a small puddle top and it feels like a bike's inner tube, so very rubbery feel. It is grippy and somewhat tacky. The feel reminds me of soft Harp, although the rim shape is completely different. After I threw the disc in sand box I couldn't get the sand off from the disc without a towel. It had some flashing on PLH but after rubbing the disc in sand I got most of it away. It is rated 3 2 0 3 by Obsidian Discs.
The first throws flew around 50 meters with big fade. H9 went somewhat farther but I didn't notice big difference in distance, maybe 5 meters or so. Both felt definitely beefier than Envy, Gstar Rhyno or Proto PA1 which I have used as a moderately stable putter. After few more throws in field I still felt that I couldn't really get the feel for either discs due their stability, but after I went to park and tried some short approaches with these, they started to feel more controllable. I don't use short flattening anhyzer approaches much but I could see that this could steal a place from Rhyno or similar for those kind of shots. H9 was slightly less stable than G5 and I parked few imaginary holes with it with ease, and it flew suprisingly far few times. G5 felt excellent in hand, and I also tried some putting with it. It is bit too soft from the middle for my taste as a putting putter, but could be nice winter time replacement for those who like to putt with Envy, if the overstability isn't a problem.
When writing this I started to think what a brand new Proton Envy felt when I replaced my lost disc few months ago. Now that I think of it, it too felt super stable after throwing slightly beat Envy for months. After few weeks though I was again very comfortable with it, so I'm sure if I give time for Splinters they lose the new feel and one of these could take a place in my bag, although right now I wouldn't switch these for Envy. If G5 does not lose any of it's stability, it could take a currently unoccupied slot of clearly overstable putter in my bag for short drives and headwind.
Overall very nice discs, the plastics are very promising, and I look forward a neutral/understable putter from Obsidian. I wouldn't recommend these discs to beginners though as these are quite overstable at least as new. It is interesting to see how the plastics will age and will the discs lose much of their initial stability.