That is all very true but it's nothing I didn't know before. You are not the only one who spoke with actual trans women. It you read my posting carefully you will notice I spoke of men and women competing and didn't actually voice my opinion on trans women and trans men competing.

As I said what you said is correct. However there are two caveats:

1. The higher bone density acquired at puberty won't go away when you go on hormone replacement therapy.
2. It's easier to keep muscles then to build them up.

A trans women who started with with favourite sport in puberty will still have an advantage over those who had been women at puberty.

And here is the catch: pubescent gender dysphoria has an 80% chance of receding at the end of puberty. So under not circumstances should anyone transitioning or block their hormones before the end of puberty.

I'm currently still working things out because I don't want to exclude trans women from sport while still acknowledge the advantage of pubescent testosterone.