Hey Philbert, I though I had read you were not a fan of CBN. When you say not impressed are you talking in terms of value for money or money a side just flat out not as good as the green wheels?
I have a Tecomec with the pink wheels and I’m happy with them. What characteristics do you find good/better about these green wheels do they grind nicer, not clog up as fast, give a better finish?
Couple of things: First, I am not opposed to CBN / ABN / borazon type wheels. Guys have been praising them on sites like these for many, many years. Originally, these were the segmented DinaSaw wheels which sold for about $260 back then, via Bailey's and others:
http://www.dinasaw.com.au/cyclone-abn-grinding-wheels/
Then, the $100 - $120 ones became available, and more affordable. Some of these might be good too. The pair I bought from Diamond Wheel was dissapointing, and they weren't very helpful when I contacted them for help. They suggested that maybe I did not have much experience with a chain grinder.
On a positive note, they generate less dust, since the wheel does not wear the same way that an A/O or resinoid wheel does, so better if used indoors (I try to grind outdoors to avoid the dust, smell, and sparks). But I could not grind any faster, and the cutter finish appeared rougher. I could still 'burn' a cutter if I was not careful. Also, since they hardly 'wear', the diameter stays consistent, and there is no need to periodically re-center you grinder (something that not everybody does anyway).
See Post # 148 in this thread for more details:
https://www.arboristsite.com/community/threads/511a-grinder-improvements-tweaks.197073/page-8
If I use good quality wheels, and regularly dress them (lightly about once per loop) I get good results. Plus they are less expensive, and I can dress the edges to custom profiles if I want, for specific chains, to experiment, etc. I did not notice a significant difference between the 'pink' and 'green' wheels.
Just for reference, the Resinoid Wheel Thread:
https://www.arboristsite.com/community/threads/resinoid-grinder-wheels.256733/
Philbert