One thing that you could try is stalling up the converter more.
When I was trying for maximum et I was flashing the converter from 1000-1400rpm and my reaction times were slow. low 6s to high 7s.
But when I race I stall it up to 2000rpm and leave exactly the same way and cut .501 to .560 lights.
I don't change anything that I do but the car leaves faster.
Staging deeper and leaving exactly the same way that you normally do should trip the lights quicker too.
Finding a place to practice on a .500 pro tree will be the hard part
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Al
Blue Green Chameleon 2000 Formula Hardtop
A4, 3.42/Eaton HD posi TA cover, Raytec sleeve, ARP studs
Yank ST3500, TransGo, & cooler
FRA, Direct Flo/K&N, EGR bobbitt, HPP
!TB coolant, Just Me Thermo mod, ATI dampner
SLP resonator exhaust, ES tranny&torque arm mounts
Home Boxed LCAs/ES bushings, LCA relocators
Best 60' 1.753
Best 1/8 8.106 @ 86.45
Best 1/4 12.704 @ 106.68
Best Mph 109.72 with a tail wind
and her
Black '98 SS# 590 M6
T-tops, Leather, Loaded