I pull a whack of low gear fuel and add low gear timing to get it to spool real quick. On PL you can watch the RPM's and MPH simultaneously
...and you can 'see' what the convertor flashes to at launch. 2 weeks ago I'd spool it to 2,000 RPM...and it was 'flashing' to 2,900 RPM.
You're getting a good RPM drop.
P.S. I leave Erics high gear timing on his default setting. I never touch it.