Are the major TPGs missing an opportunity?

I'm curious why neither of the major TPGs are willing to accept the other's certification when it comes to First Strike or Early Release status. It seems to me that Registry participants are being ill-served when they aren't allowed to cross their coins into the plastic of their choice when it comes to this special designation.
Since the designation bears no direct relationship to the actual die state or striking sequence of the coins, and since both TPGs are in direct competition anyway in terms of re-grading coins that their owners want to cross, turning a blind eye toward collectors in this area seems bull-headed to me.
Do they not believe each others' labels when it comes to this type of documentation? It's not like their customers wouldn't pay for the service. I don't get it. Has anyone pursued this question with either TPG?
Since the designation bears no direct relationship to the actual die state or striking sequence of the coins, and since both TPGs are in direct competition anyway in terms of re-grading coins that their owners want to cross, turning a blind eye toward collectors in this area seems bull-headed to me.
Do they not believe each others' labels when it comes to this type of documentation? It's not like their customers wouldn't pay for the service. I don't get it. Has anyone pursued this question with either TPG?

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In all honesty... both designations say "different" things... they are not the same and do not have the same meaning... and the true meaning of each is somewhat obscure, with one possibly being more "honest" than the other... I make no "public" judgement on that...
To truly discuss this matter, which has been attempted on this forum in the past... will only lead to some fireworks and when that happened "long ago" ... some members ended up banished from the forum...
All these terms are is marketing... and TPGs obviously have the need to market their product... however, the best advice I have ever heard is this ... "If you want a coin in a certain TPG holder, then buy it already in their holder" ... in this case, either buy one already holdered or submit your raw coins to the TPG of your choice. They each have their own rule books and playing fields and it is not really their job to support each other.
<< <i>You mean the term First ..."ahem...cough..cough.."..is subject to interpretation....?!?!?!....
Let's just say that when one is talking about a manufacturing plant and the attached storage facility where what is manufactured gets stored until shipping...
...the old proverb "and the first shall be last and the last shall be first" takes on a whole different meaning
<< <i>
<< <i>You mean the term First ..."ahem...cough..cough.."..is subject to interpretation....?!?!?!....
Let's just say that when one is talking about a manufacturing plant and the attached storage facility where what is manufactured gets stored until shipping...
...the old proverb "and the first shall be last and the last shall be first" takes on a whole different meaning
.......and let's not forget...... "Don't cross the street in the middle of the block..."....
My Complete PROOF Lincoln Cent with Major Varieties(1909-2015)Set Registry
I have in the past successfully crossed SAE First Strike NGC slabs to SAE First Strike™ PCGS slabs. Only for First of the year releases though, no mid year releases such as the 2006-W, 2007-W, and 2008-W coins which is where some big difference exist. Primarily because each TPG must rely upon shipping dates from individuals which may or may not be the same. 30 days from release for a coin shipped on 10/12/2006 is different than 30 days from a coin shipped on 10/11/2006.
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