Update:
I marked all the units on a flat spot with an engraver to keep the cores straight so I can get your same core back to you and also just in case there is a cracked core or leaky fitting I know who to contact. If a 90º elbow brakes during removal I would expect the owner of the core to pay for the upgrade to the brass 90.
The good news is that in all cores (so far) that have had a leaky fitting the 90 has been removed easily (probably because the sealant is breaking down and degrading/leaking). The only 90 that did break was one that wasn't leaking, and the owner just wanted the brass upgrade for long term strength.
Seeing as whatever compound used to seal the ports is breaking down over time, it makes more sense to upgrade to brass sealed w/ the JB Weld so you don't have to remove the unit ever again to reseal the ports. <-- My

again. Take it with a grain of salt
Stoutdog has the first brass upgraded ports (unit already shipped and received by him) and as soon as unit is installed we'll get feedback on how the hoses fit.

If the new slightly larger brass port fits stoutdogs factory hose nicely, we are good to go. If not, I will order some brass and drill/machine/thread from a solid piece.
Nelson15 has requested the brass, I will wait untill I hear back from stoutdog before I send nelson15's out w/ brass so I know if a smaller straight port is needed.
I'm going to be slicing all the cores up in the morning when I get off work (step 1). Time to start the next batch. I think we have 12 or so cores now so it'll be a busy morning. Hopefully this batch will go quickly.
If you want in on this batch, send your cores ASAP. Once all the tops are cut off and all the core surfaces are flycut flat, that closes the batch since I will be setting the lathe up to machine the round parts and don't want to go back and fourth. All cores received after that point will be in the next batch. - Mark