Modifying Pioneer SP-BS22LR

I’m thinking of modifying these speakers with Dennis Murphy designed changes, which includes removing the existing tweeters and replacing them with the Peerless BC25. I happen to have a pair of DX25 tweeters that have very, very similar specs other than the Fs,which is about an octave lower in the DX25.
Anyone familiar enough with these mods and/or tweeters to think that the DX25 would be suitable?
Thanks,
Peter