This ffmi thing is a pretty often recurring thread topic. In the last one although I lot of people had a lot to say about it being wrong, no one natural actually exceeded the estimates for what is possible, at least not anyone lean.
OP because I have no life I worked your ffmi out at around 24.75 (corrected up to 25 for your height)…which is not at the 26ish limit proposed by the authors. Also as Apoklyps noted, a higher body fat means the ability to hold more lean mass, so combined with your own estimating of body fat % I really wouldn’t concern yourself.
As other have said, does it really matter anyway? The general conclusions to thread like these, and those that ask how strong someone can get naturally is; ‘why does it matter what other people say/think is possible, everyone is different so just keep at it and see how strong/big you personally can get’. [/quote]
I have rarely come across/hear about any lifters who genuinely challenge this guideline, and you are certainly not one of them. You have plenty, plenty of gains to come.