I believe a 100% drop rate on totem is not a bad idea. 50% totem rate would be more realistic. But either way, it should really not drop weapons anymore, and the cost of weapon should go up.

For example:
1 Weapon = 10 totems. For non-dedicated-super-douper-hard-core-player who only cares about 2 jobs:
20 totems, 30 minutes/run = 10 hours.

Therefore, one saturday or one weekend and this person is done with Iffy.

For example:
Souper-douper-obsessive-gotta-catch-em-all-player needs 7/7
70 totems, 30 minutes/run = 35 hours.
A weekend of Ifrit (or a slow week of ifrit) and this person is done with Iffy.

This may be much too fast for this sort of content for two reasons:
1) There will be 'less' to do after you are done.
2) Those who know how to beat iffy stop doing iffy, leaving all new players in a tougher learning curve (unable to benefit from experienced players).

(Kind of like Garuda, where many people got 7/7 in easy mode, and now do not want to partake in hard mode).