Looking to tune my 11.5 pistol - Spikes Tactical Heavy Tungsten Carbine Buffer

I don't like doing reviews on items I have not been able to test yet, but I am going on my experience with other Spikes Tactical products I have used in the past. I bought a striped lower and put together an AR pistol with an 11.5 upper. After some research, I decided on an H2 buffer and flat wire spring. I found this Spikes Tactical T2 Heavy buffer and decided to try it. I have not gotten to the range to test my project yet. If it does not work, I will surely write a different review at that time. I wanted to clear this of my email as it keeps coming back to haunt me lol.