Do you have a spoiler? I'm not certain about how the gen5 is set up, but on gen7 Accords, there are two different types of OE torsion bars (trunk springs) available.
One of them is for cars without the spoiler, and the other is for cars with a spoiler. The latter has a higher spring rate than the former.
If you DONT have a spoiler, and can get your hands on a torsion bar that is more tightly sprung, then you can make your trunk pop all the way open. I did this on my gen7 accord, and it works like a charm. Best $40 I've spent.