My leveling diary for 100-150:
100-108- camping 12 MvPs as soon as servers went up (friday)
108-112- Juperos with some random breaks to magma 2 to leech pom some job levels (lol)(friday)
112-118- Rachel Santuary (saturday)
118-150- AL3, random levels at Thors 3 / bio2 to check it out (sunday+ monday)
Total Time? 80~ hours
HEBMS all the way from 100-150; ~320 HEBMS used bought @ 6mil each = 1.92bil
~200k mastelas used @ 6k ea =1.2bil
~400 ygg seeds @ 250k ea
total zeny? ~4bil
All the maps that I leveled on were either completely empty, or had Yoon and Kaden on them as well.
No one ever questioned your lvling.