I actually first took the record with 6.995, but my audio wasn't really recorded so I decided to beat the time! This run uses a different strat at the start of the run than Mumu_Didi did. I slide and time my jump so that I get interrupted and come to an immediate stop on the elevator. Then I just do a slide into Rocket Jump + Jump towards the wall.

I don't know if this strat is slower than the one that Mumu_Didi' used in his previous record, but it sure is way more consistent to get the Wall Boosts!