Fundamentals with resistance training

[Brad Rudner]

I'm excited to start GB. I am not a beginner but I will respect the wisdom of coach Sommer and start with Fundamentals. I have achieved some of the aspects of F1 on my own when I was leaner and stronger. I'd like to do Fundamentals and concurrently drop some fat and gain some strength. I don't need to go for hypertrophy but I would like to lift some weights and ride my bike to boost my fitness, increase my strength and burn fat. Is this a mistake? 

I wouldn't be lifting to failure or doing high reps. Just some moderate training to boost my metabolism and hopefully prepare me for F1 and get me back to where I was. 

Insights are appreciated. Thanks.