Seconding that the master brace was noticeable right away in my case. Pre and post Wilwood calipers. I could tell as soon as the first stop sign I arrived to.

 

Adding a brace in my NA made a world of difference. Not as much as swapping the MC like you stated, but still very noticeable. I was blown away by the amount of firewall flex the first time I pressed the pedal from outside the car and watched the MC migrate forward lol. Your piece looks good!

 

I need to make one of those braces. Nice job.

 

Great work, nice and simple, but no doubt effective. Yet another project to make me consider getting a welder. Seems like it would be a pretty good project for a beginner to tackle.