Sorry, no video. just learning how to do screenshots !! Trying to upload screenshot midgame but it is not working. I have Mastery plants so I can plant 4 Cualis in the far left column and six MoonFlowers in a checkerboard pattern in Column 4 & 5 so I can then plant Dusk Lobbers in C4, C5, C6 once the clock starts. After starting the clock I place down Spearmint so I have two rows of Spikerocks in C8 & C9...add Caulis whenever available in C1 and C2 and fill in C4, C5, C6 ASAP (save one spot for Spearmint placement on the lawn) as SUN allows so I am ready for the next Spearmint to fill C7 and C3 !! I will wait if Spearmint is early to be sure C5, C6, C7 are filled (minus one slot of course).
Final plant is Concealmint and I have used one early but try to save for near the end for best use racking the score higher.
Final layout has 10 Caulis in C1 and C2 plus 4 Dusk Lobbers in rows 2 & 4 (C4-C7) and alternating MoonFlowers in rows 1,3,5 (depends exactly what else I place (DL or Cauli if I have more than 10) Column 7 Spikerocks can be replaced once the second Spearmint has been put down (for spikerocls in C3)
I hope this helps
For my Level 1 profile I am using Gold Bloom instead of Imitator (Cauli) along with Shadow Peashooter instead of Dusk Lobber (just not available yet for the profile) since I have been preoccupied with BattleZ instead of finishing Modern Day !! Best score is 2.5M but average is just under 2M (when Zombies do not reach the Caulis)