CF Express Type B for R5II

Currently I own an R6 and have an R5II on order, along with a Lexar 128GB Gold CF Express Type B Card that the retailer were doing as a 1/2 price deal when ordering the R5II.

However, I am looking to get maybe the Prograde Digital 512GB CF Express 4 Type B card or a Nextorage 512GB card.

What are the opinions on these as mid range budget cards?
 
The 1TB prograde gold v4 cards works very well in my R5II, zero complaints.
I am a bit annoyed that prograde has dropped the price by 20% on amazon since I bought it last week.

The R5II doesn’t support CFe 4.0 speeds, but pulling the images of the card happens at 2.3Gbyte/s for me, about 8 times faster than the fastest SD cards!
 
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I have found Thessdreview to be helpful.

Write speed to card will likely be limited by Canon. I haven't seen numbers yet on the R5 II and R1, but for the R5 it was ~520 MB/sec. However, their reports on some cards heating up a bit and also transfer speeds were on the money.
 
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