I've had mine for several years, though I don't quite see why you bring that up, as it has no relevence to what you said preceding that. Eliminating that, I don't see the purpose of the first statement, and in fact it seems to argue against your proposed proof.

Regarding the Jefe, that hat needs to be priced first in order to use it as proof for another. Using mini suggestions as you attempted on it would almost certainly only apply to hats that have already been priced, and the price is too out of date to be quoted directly(hence the need for a mini suggestion). New hats with no price yet most definitely need a proper suggestion to establish the value before being quoted, unless a substantial amount of proof was used in a mini suggestion, which you have not done, as only one sale is cited. Even in a proper suggestion, new hats require at the very least 2 sales for the price to be accepted, why would a "mini suggestion" be exempt from this rule? The simple answer is that it is not. They would need 2 sales as well, and being mini suggestions, that would indeed be the bare minimum in that case.

Aside from that, the reggae(3.9-4.8) is a clear outlier(as is the moon ballcap most likely), that much is obvious. And finally, we have a trade that has all the trademark signs of a quicksell. I don't see how any part of this proof could be considered strong.

Lastly, I'm not making a counter suggestion because, as I stated above, I don't see enough solid evidence in either case to update the price as it stands. It's all very scattered.