I could be wrong, but at last check, I believe the customary opener was the following:

Huton pre-pull > SE > B4B > GS > IR > DE > Suiton > Multilate > Trick Attack > SE > Kassatsu > SF > Raiton > SE > Mug > GS > Jugulate > AE.

This allows Kassatsu>Raiton to be cast with IR & B4B still up for maximum potency.