The Korean guys have moved on to Krytox oils. KG-8 not very popular nowadays. (Maybe because it is hard to get in Korea? I don't know. I tried them on Topre switches, but the effect wore off quite quickly and for that reason I don't recommend them.) RO-59's prime time was even before KG-8. RO-59 is seen as fail proof, but its performance is seen as inferior to Krytox oils.
KBDMania members use two types of oils for use inside of Cherry switch. One type for springs and the other type for plastic sliders. LSD oils are popular choice for the springs and Krytox oils for sliders.
By the way, there were significant amount supply of GPL103 in KBDMania from recent group buys. Thicker oils tend to have performance issues over time and thinner oils have durability issues hence 103 was chosen from discussions between members.( http://www.kbdmania.net/xe/3744764
We will see what would be the next choice of lubricant and which lubricant survives.