I only just beat 2-3. Problem is the veins take so long to cut, and during the 4 tumors phase the vitals drop very quickly even during HT. Also, post-laser-tumor cuts seem a bit more squirty this time, making them harder to clean up after (quickly, anyway).
Haseo: C'mon, c'mon, c'mon, I'm right here...TAAAAXIIIIIII!!!!!
I've found that cutting all the veins except ONE on each Tumor is vital. For some reason vitals drop severely if ALL the veins are cut on the tumors and left there without throwing them away. With just 1 vein left on each you have 4 to cut, then you throw them away all at once. You should prepare the vitals high before doing this, because even with 4 veins to cut your vitals drop about 60-70 anyway. No HT needed though.
What I did was cut all the veins on three of them and then remove them. With three tumors gone vitals should drop a lot slower and you should still have time to cut and remove the last one before they regenerate.
Such a sweet smell, Rubedo... The smell of rage evaporating off your body. Sure you don't suffer from excessive norepinephrine?