Hi Tim- I recently acquired a shaft (Tibbetts) with a Moori Med tip...
It has held up well, still has a lot of tip left, but eventually I will need to
replace it, no doubt... and I definitely want to stay with the Moori Medium...
I wasn't aware these have gotten to be hard to find, so I did a search and
found this site for Cuecomponents.com ... perhaps you have already
been there and done that? ...
anyway, there is talk about there being a lot of counterfeits on the market
for fake Moori's, escpecially the Moori 3 and 9-layer Moori's...
Perhaps you are already aware of this?, and maybe shed a little light on it?
here is a couple excerpts from Cuecomponents webpage---
your comments would be welcome!

.... thanks, Bob.
http://www.cuecomponents.com/mooritips.html
Genuine Moori Cue Tips at the best prices and they are made in Japan; available in soft, medium and hard.
These are the new Moori IV's (which are 8 layers) from Japan which are available in soft, medium and hard and priced as low as $8.33; the best price you'll find. They are all 14mm. You know the quality. For Moori Cue Tips, our prices are probably the lowest around. If not, let us know. Moori cue tips consistently receive the highest reviews.
NOTICE: The new Moori IV's are 8 layers and anything else would be considered fake or counterfeit. Be suspicious of anyone selling Moori III's or anything but 8 layers Moori tips especially on internet auction sites. Genuine Moori IV's are 8 layers; period.
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First, Genuine Moori -vs- Fake Moori
We've posted a picture of the genuine Moori next to the fake Moori. For comparison please note that the packaging on the left while similar, there are differences worth noting: the green package lettering is a slightly different shade and more pronounced or bolder on the fakes while the foil dots or indentations are more pronounced on the genuine Moori.
The fakes are darker in color and taller while the genuine Moori are a softer tone and less thick. The tips shown on the left here are actually fake Moori III's.
Current fake Moori being offered are 9 layers!
Current Genuine Moori IV are 8 layers!
The hologram shows differently using the hologram decoder tool (which all reputable distributors possess). On the genuine packaging, the hologram changes image while on the fakes it's just a clear sticker that shows just one color and one image. This hologram appears on the foil backing and is located in the center of every 4 tips.
Additionally, the holograms also show the words, GENUINE, AUTHENTIC AND SECURE on each hologram. You will need a 10 power magnifying glass to discern these words while holding them at different angles.
The fakes are approximately .707mm tall while the genuine Moori are approximately .628mm tall.
Worth mentioning is also the fact that Moori is not manufacturing any Moori Black Cue Tips. The ones being offered on eBay and elsewhere are counterfeits.
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Moori 14mm Cue Tips are priced as Follows:
Per 1 to 11 @ $11.95 each
Per 12 or more @ $10 each
Per 60 or more @ $9.00 each
Per 120 or more @ $8.33 each
Mix and match for your lowest price!!
Soft, Medium and Hard are available.