After two week playing the low tension GLOW set, I would like to share my impressions. Compared to the normal tension GCNM strings their gauges differ not dramatically.
Just four strings are different: g (-0.02mm), d (+0.02mm), A (-0.02mm) and E (-0.05 mm) where only E deviates significantly.
Nevertheless their feel is surprisingly low compared to GCNM, which felt more like hard tension on my guitar. Opposed to this the feel of the GLOW set is very comfortable for both hands!
The exceptional good balance and intonation is similar to the GCNM, but the sound of the GLOW set differs more than the little gauge variations suggests.
First of all they need quite a while to develop their full sound potential as most low tension strings. The trebles are very sweet, warm and dynamic in the sense that they response very sensible to the intensity of the stroke. In addition, they are very colorful depending on the place of stroke. Both, dynamics and variety of colors are only real weak points of the GCNM trebles.
String separation and the top e string is less pronounced as with the GCNM, which implies that they might not be the best choice for a guitar with a weak top voice.
The real surprise were the basses. Wow, what a difference to the well contoured but tighter GCNM basses. Full bodied and with beautiful warmth. All to my surprise the most outstanding string is d. A tone which is warm and full bodied over the entire fretboard, similar to the Augustin Blue d but less tight.
So if your guitar is responsive, with a strong top voice and you're right hand likes to plays quite dynamic, these might be the strings for you. My follow-up order, two GLOW sets, has already arrived! In my case a perfect match, although I'm more cautious with such superlatives with the times.