Wasso

I believe a 25-50 shot doesn't need retarding but 75 is advisable and 100+ must be retarded.

Point taken...

So my timing is retarded, right ok cool You wouldn't lose that much pressure from the bottle from doing just a few runs. I used a full 5lb bottle in Wales and only like you say when it got low in volume did I lose pressure. You can hit 4 5th's of the bottle over 850 psi and that was without a bottle warmer. Ok so outside temps were warm which I rely on, but still managed great hits throughout the day. Apparently the reason I melted a plug was because I did two runs from 2nd gear all the way to fifth which generated far too much heat. I'm thinking water meth might help solve that problem in the future.

Funny what you get told by a sales clerk these days. I was told you need pulsoids for both throttle bodies and I'm sure a technician at Won confirmed this. Unless with the new pulsoids there's no longer a requirement for 2 sets. Can I ask though, why you suggested retarding the timing for the HR if running 75 shot, yet not for my DE. Lastly how is it possible for nitrous pressure to reduce if it's a continous 920psi (for instance) out the bottle?