It works well enough offline just need to practice the timing. Main reason I don't do your variation is I start walking corpse from near max range so it causes people to want to jump instead of wakeup attack due to the armor. I've landed it on ak harold reno racks so it works against top level players just not a go to move. Not to mention grundy having 2-4 bars to make it really worth it is not that common but I have made some comebacks looping 4/5 meters worth.yeah i wouldn make it a staple of my play or anythin , just grundys f3 seems very blockable for unclashable damage , i took it online with mixxed results it does seem char specific oh well !!