Hey there,
I ended up getting two different kinds to see. I have a few B40's and going to test both of them. I did end up getting the 7RP, yes it was expensive, but still cheaper than the H bag inserts. I got 15% off so it ended up being a little cheaper. I tried the MaiTai site, but they didn't make their inserts that large. But I just ordered from Merandi. LOL
https://merandiworld.com/products/silver-lining?variant=43813288280290. I have heard good things about them. All my bags are in togo so seeing what works best. Merandi inserts are half the price of the 7RP, as you know, so we will see. Good luck! Let me know what you decide. Maybe both too?