Update; I've previously posted about my negative experiences with Aquila Rubino strings. However, last week I received a message from Mimmo Peruffo, the maker of Aquila strings who kindly agreed to send me some free strings to try. These arrived yesterday by express delivery and today I'm having another go with Rubino strings.
Mimmo mentioned a couple of points about these strings. Firstly he suggested those I tried before were an early batch - and indeed the new ones have a sticker saying Nuova Formula. Secondly he said that his claim about the gauge of the strings is not it remains the same but that it increases "progressively to leave the gauge almost unchanged as possible".
As well as a set of Rubinos, Mimmo also sent me a set of Cristallo (nylon trebles, covered Nylgut basses) and a set of Zaffiro, in which the trebles are made from Nylonplant, which is said to be a variety of nylon derived entirely from plant material, and to sound somewhat like fluorocarbon strings.
I put the Rubino strings on my guitar about 5 hours ago. They are still settling in, but the immediate impression is positive. If anything the tension in the treble strings seems a bit higher than last time (they are 'normal' tension) and the tone is very even across the whole set; intonation also seems good. Let's see how it goes over the next days and weeks! I shall also look forward to trying the other Aquila sets.
Eric from GuitarLoot
Renaissance and Baroque freak; classical guitars by Lester Backshall (2008), Ramirez (Guitarra del Tiempo 2017),
Yamaha (SLG 130NW silent classical guitar 2014).