Suck it up as in live with it and the grinder sucking it up two very different things.
SOP in precision flat grinding and a normal problem. It is not only the part is is commonly or often more wheel growth.
Makes it look like the part has "sucked up" in the middle during the grind leaving the part "hollow" or thin in the middle.
Bob
OP is chasing guesses about "edge cases" - as if "read it on the internet ..somewhere" - and more or less at random without any indication "so far" that he has even gotten the "most basic" parts of a grinder's tall pyramid of a "food chain" assessed and made right - or at least taken on board, if not yet in his ken to compensate for.
"Preaching to the BANDMASTER, not just the Choir" I am sure, but there's both a "learning curve", and a "maintenance minimum" to being able to get best results in a reasonable time and cost with minimal risk or scrap loss. Not an "instant gratification" exercise.
AFAIK, you have both. OP has neither. Yet.
I DID HAVE the first. Rebuild included.
But so VERY long ago I won't kid myself nor waste time nor money
owning a surface grinder. Not even if brand-new and as a free gift and rigged-in at no charge.
I can't "keep up" with the "get your HEAD in the proper cockpit" TIME consumption load .. nor even the investment in good wheels, plus-plus-plus.
Sumthin' needs ground?
It goes OUT!
... to someone who does it all day, every day, all year and DOES have the up-to-the minute "best current practice" orientation and collection of wheels, fixtures, dressers ... and more than one type of grinder.
A "professional grind shop" in other words.
Lot's of machine-tools make "fun toys".
Grinders? Unless tasked so as to coin money to pay the bills?
They are mostly just TEDIOUS sucker-uppers OF time and money.
There's good reason so many used GS's are out there, and so many "revenue" shops no longer make space for one under their own roof.
As I'm in surplus of time and money-wasters arredy?
"Send it out" stands!
The OP MAY have sound reason to go another route. Worthwhile payoff may come good in his future.
But that "learning curve"- potential need to rebuild - and the INVESTMENT do not come with easy nor cheap bypasses.
2 Cents . and no surface grinder's worth! "Cheat" that I am in me dotage?
I "just buy" 1.2.3 blocks. And not-only! Cheaper that way.