Have you tried both A and C hubs with the brace? On high bite surface it does make a difference and the buggy does perform differently.
I do understand that money spent into the car won't make it faster nor is an investment.... but at the same time it's hard to see someone judge something without ever trying it.
I tried A hubs again last night and my buggy felt limp. It was more predictable and "safe" to drive but it didn't have that extra edge I prefer.
Also, the JQ guide is a great article and I have it saved on my devices. However, it's for 4wd vehicles and not all changes will act the same. Like anything, make one change at a time and see how it works for you.