The phrase "are pretty much consistent" is correct and usable in written English.
It can be used to indicate that something is generally or mostly consistent, though there may be minor exceptions.
Example: "The results of the experiment are pretty much consistent with our initial hypothesis."
Alternatives: "are largely consistent" or "are mostly consistent".
"The stories are pretty much consistent across the board, both in the manner that the men are being abducted and in who they say is taking them," the human rights investigator said.
"Our results are pretty much consistent with the national trend," said Cynthia Lim, director of LAUSD's Office of Data and Accountability.
Both sets of results are pretty much consistent regardless of how old people are, which part of the country they live in, which political party they belong to or how much money they earn.
"The message from this study is pretty much consistent with the recommendations for chronic disease prevention and cardiovascular disease prevention," says Dr. Sylvia Ley, an instructor in medicine at Harvard Medical School.
That assessment is pretty much consistent with Mr. Lewis's recollection of the legendary Dec. 4, 1956, recording session that provides the musical with its source material, and which Mr. Lewis said was initiated when Sam Phillips, the Sun Records producer, invited him to his Memphis studio because Presley wanted to meet him.
It is noted that hourly volume pattern is pretty much consistent irrespective of different cold categories.
They are pretty much flavorless.
The missionaries are pretty much uniformly critical of Chagnon.
You are pretty much inseparable.
Apple has designed it to be pretty much universally consistent, but elements like whether or not the head unit has a capacitive touchscreen (this one does) for better touch input response are going to make things a little different OEM to OEM.
In short, it's pretty much the most consistent, high-quality animation on the Internet right now, with updates every Monday.
