I agree and was thinking about a gen insert, too. How much did you pay it? Can you post a picture when you receive the insert? Thanks!
all in, with international shipping, tax etc, I believe I payed $230ish USD, thats with the lume pip though. It was the only one I could find online with the pip. I have seen a few inserts alone on eBay and Chrono24 for the $130-$150 ballpark. The pip on the watch in my QC pics is off center from what I can tell, and the ZF pip is flawed compared to gen anyways, so it was a two birds with one stone thing for me. I have the insert but the watch is yet to arrive. Once it comes in I'll be sure to post side by side pictures here comparing the two though.
What I find weird is that the insert seems to come in the blister with the pip already attached, so I dont understand why a majority of inserts I saw for sale didnt have it.
For reference the dimensions of the BB58 insert are 37.5mm outer and 31mm inner diameter.