• The popup now clearly states the sublevel calculation is for age XX years and 00 days;
• The popup window is now draggable – move it around as you please, no more UI tyranny;
• Sublevel calculation just got awesome – it even figures out which is the primary and which is the secondary skill when both levels are identical... and gives you the sublevel of the primary one!

However, keep in mind: if the secondary skill has a very high sublevel, the result can get slightly skewed – deviations of around ±0.20–0.30 are possible in the main skill's sublevel.