HCG never did that for me and I tested DHEA and Prog when using as much as 500iu either 2 or 3 times per week. Was my last attempt at really messing with HCG.
Though if that were true, there wouldn't be any need to tell guys they need preg/dhea if the HCG mimic'd the LH, in that way. There'd be downstream conversion and no real reason to supplement.
So while it looks good on paper or in theory I don't think HCG does that in TRT guys.