>>536096385
Both the SSR and SR supports this time are really strong.
The SR when maxxed gives +8 Vi per card deletion, +13 Vi per SP lesson, and the P-item gives a flat +30 Vi boost when proc'ed.
The SSR asides from being a SP% card also gives +Da for SP lessons and +Da for every drink obtained, while the P-item gives +60 Da on top.
The drink stat on the SSR especially when combined with the Begrazia Festival card and the Sumika/Rinami card (both of which share this stat) basically enables you to gain 12-15 parameter for every drink.
This makes the optimal strategy for the run would be to hit up every 差し入れ for 1 drink, pick the drink P-item after the 1st audition and to switch out every drink possible, in addition to dumping all of the extra P-points by buying out the last shop. The Rinami/China card also very good as the P-item gives 4 drinks (i.e. 48-60 param) on top.