I have not but i was not planning on using internally gated turbo since they tend to get in the way.
Its a bit for pricey as well.
Im thinking along the lines of gt3072 / t3
Cold
inducer 55mm
Hot
Inducer- 60mm
Exducer- 55mm
Should be good for 600awhp and still capable of 800awhp when pushed.
another im looking at is gt35 / 61mm / t3
might be a bit laggy though.