Need some help at farming in high lvls

[Dnjwan]

Hello everyone,
i am lvl 72 Blader with 60 ICE/ 60 Light / 69 Blade - Fire Skills.

and i was thinking to have a 0 gap in the Blade Mystery till i get to lvl 80 then Delvl my Blade to 71 and farm !

What i wanna ask about .

Is this a good idea or i should keep the 3 gap till 80 ?!
What is the best mob/location i should farm at lvl 80 with 9 GAP as a blader with weak attacks ?
if i went with 0 GAP and 100% EXP Booster to lvl 80, how much time should it take from 72 to 80 with 0 GAP ?

Thanks all, i hope to get your replaies soon

[Temptation]

I would rather 0 gap to 80. 3 gap would be kinda boring even at that stage.

[Dnjwan]

okey so what about the farming place! ppl told me to kill Niya Gurds but i think they will be blue mobs at 80