Which one of these 2 would give the highest dps in the long run? (10-14 min final coil fights)

1: Using HQ X int pots together with your raging strikes+convert combo.

or

2: NOT using the above but instead waiting for swiftcast to come off CD and using a swiftcast flare at around 400 mana + elixer/manapot + blizzard 3 while raging+convert are still in CD.

This is the only thing that I still don't quite know about BLM...