Holic Guide : Strengthening

Strengthening
The first stage is to strengthen the success rate is 100 percent, the second stage may fail and the loss of items that fail.

Stage Growth rate of damage

Stage 1 6.00%
Stage 2 10.50%
Stage 3 15.00%
Stage 4 19.50%
Stage 5 24.00%
Stage 6 30.00%
stage 7 37.50%
stage 8
Stage 9
Stage 9

Lv +1 100%
Lv +2 90%
Lv +3 80%
Lv +4 70%
Lv +5 60%
Lv +6 50%
Lv +7 40%
Lv +8 30%
Lv +9 20%
Lv +10 10%

However, u can also fail at +1 (as it happened before).

therefore, i'd say +1 = 99.9% success

Good Luck!

i think its lower than this...you can fail a +5 with a double tag

also if +5 was 50% there'd be a lot more of them around

if +6 was 80% with double tags then we might see some actually in use..

xbombr