Newbie question about F6 PS

I just finished building the PS for my F6 project. Using the Universal Power Supply board, I stuffed it with parts from the BOM in the build here:
https://cdn.shopify.com/s/files/1/1006/5046/files/P-PSU-1V30-bom.xls?15967766640867126881

I'm using an Antek AS-4218 (400VA, 18V).

I'm getting 26.8 volts out of each side. I was expecting 24.

Is this going to be too much for the F6? If so, should I chose differs values for R1 through R8?

BTW: I'm using 25V 15,000uf caps.

Thanks,
Peter