Some tips for item upgrading in knight online

Here are some conclusion based on stats collected so far in knight online:

You can safely upgrade low class items with Upgrade Scroll (Low Class Item) to +3
You can safely upgrade mid class items with Upgrade Scroll (Middle Class Item) to +3
You can safely upgrade high class items with Blessed Upgrade Scroll (High Class Item) to +3
KE has tweaked the Blessed Upgrade Scroll (High Class Item) percentages on items that are now considered high class. 3->4 is now 70% (it was 90% pre-KE) and 5->6 is now 55% (it was 45-50% pre-KE)
It doesn't seem to help to use Upgrade Scroll (Middle Class Item), Blessed Upgrade Scroll (High Class Item), or Blessed Upgrade Scroll (High Class Item) on a much lower grade item. E.g. using Upgrade Scroll (Middle Class Item) on a low class item from 5->6 or 6->7 doesn't seem to improve the % success compared to Upgrade Scroll (Low Class Item), and Upgrade Scroll (Middle Class Item) costs than Upgrade Scroll (Low Class Item) more. The same applies to using Upgrade Scroll (High Class Item) on a middle class item from 3->4 or 4->5 compared to Upgrade Scroll (Middle Class Item). And to using Blessed Upgrade Scroll (High Class Item) on a middle class item from 7->8
For enchanting or adding elemental: LEnS and LElS are reliable on low class items, and MEns and MElS are reliable on middle class items. The % of failure is very low. However, I don't recommend you use HEnS for high class items. I've only tried it twice on +7, and one time it failed. Anything high class is worth spending a BEnS on.
Upgrading low class items to +7 is easy! You will need, on average, 9 +1 low class items to get to 1 +7 item. It is now VERY easy to get paper items up to +7/12; that is why their prices have plummeted. I think we're going to see more paper mages. Prior to KE, a single +7/12 armor piece used to cost 30 mil+ to build or buy. Now such armor costs less than a million to build.

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