Does anyone have experience with the Canon 500mm II and the RRS LCF-53 replacement foot? I'm thinking of getting one to replace the original Canon foot but I'm concerned about balance. Is the RRS foot long enough to properly balance the lens with an R5 alone (with the EF adapter, of course), with the 1.4x III or with the 2x III? I know I can get longer foot to attach to the original foot but I'm trying to save on weight however little it might be.

Thanks in advance.