Are morphing RSS feeds okay to use?
 

Like the thread title asks, are morphing RSS feeds okay to use? Like if I used them and maybe changed a few words around, can blogs using them get decent search rankings? Or is using them the same as RSS fed splogs? There's a few niches that have them available that I don't know much about to write effectively about so I was considering using morphing feeds as the base for the blog posts in that niche.

Yes they are. Especially if they are REALLY morphing but not just synonymized.