UPDATE: I have found that the frost effect produced by the method below doesn’t necessarily last very long with the friction of the yarn over it, so I’m looking into better ways to frost the tips. You don’t want to keep going over them with steel wool as that will wear them down. I will say that you do get used to the clarity of the tips after a while, so you may not need to bother if your eyesight is good enough. Use them for a while and see what you think.
I got a sample of the new Knitpicks.com Zephyr acrylic Options circular needles and liked them a lot at first try, so I ordered a set. In the days before they arrived I played with them more and started to feel that I didn’t really like the glass-like clarity much. It made it harder to see what I was doing. I could see the yarn through the needles as well as in front of it and in placing the needle tip that made it a good bit less distinct than I preferred.

I don't like seeing the yarn through the needles like this.
In the mean time the box with my set arrived and I let it sit on the dining table until I could come up with a decision or solution. I looked on the internet for ways to stain the acrylic a less transparent color but found nothing. Then it occurred to me I could just make the tips frosted by going over them with steel wool.

The tape gives the frosting a nice, even edge.
So what I did was wrap some scotch tape around the needle one inch from the tip, nice and straight around the shaft. I tried some 000 steel wool but it didn’t give it enough of a frost, so I tried some #1 steel wool, which is courser. It does leave some faint lines in the surface but as it is more abrasive the overall effect was better frosting.

Twisting the tips evenly in the #1 grade steel wool.
You will want to experiment with how to do this; how hard to pinch and where. I wrapped the tip in a bit of the steel wool and twisted sideways, working my way to the tip and back, dusting it off and checking where I was missing. Then I went lengthwise toward the tip to give it a crosswise abrasion, then again did it twisting side to side. Dust off the tip on some cloth to see how it’s coming. Compare it to an untreated tip and see if it’s frosty enough. Remove the tape when you have the frost effect the way you want it.

The frostiness will be reduced by the angle of the lighting or oil from your hands. The one on the left has not been frosted yet.
I tested my first treated pair and find it is very satisfactory. The distracting transparency is much reduced. Additionally, the smoothness and slip of the needle tips is further reduced. Whereas the Zephyrs have a sort of faint creaky feeling or sound when new, the frosted ones feel and sound more like bamboo. This is fine with me as less slip is one of the reasons I got them.
If you try this you do it at your own risk. Be methodical. Also, be aware that steel wool sheds a lot, so do it over newspaper and be sure to dump the shed fibers in the trash. If they get on the rug and ever get wet they will rust and stain the carpet. You may want to vacuum when you are done for good measure. If you don’t like the frostiness you can reverse it SOME by using 0000 steel wool or maybe with clear nail polish.
So I decided to keep the Zephyrs. They do have the sharpness, friction and travel-worthiness I was looking for, and they do have a certain futuristic elegance.
Related Posts:
Wow, Eric – good tip – so to speak….
I just got the new Knitpicks catalog today with the Zephyr needles on the cover. I’m tempted – but already have a bunch of Denise, and the Clover bamboos. So maybe not now; but they ARE cheaper than the Harmony.
Great blog! – followed your link from Ravelry.