No, they are not the same, both are quality triggers.
I have a GG trigger on my 320 and I've handled Robert Burke's trigger job 320.
I found the GG trigger to be more like a short stroke revolver with 0 take-up, whereas the Burke trigger was more like a 1911 with a definite take-up.
I prefer the GG trigger, my splits are faster than ever, faster even than my Brazos Custom. Hope that helps.