But I wanted to continue to progress over the 25 weeks but I also think, whatever type of muscle fibers you're mostly made up of is a huge difference too. Ive always seemed to grow best 8-15 rep range. And I probably look bigger because I've been eating a ton more. But I just have that gut instinct that HIT training is a better way to go for me
If that's the feedback you are getting from your body I would say go with it. Remember what works well for one person doesn't always mean it works well for you. I am like you in that I do better in the 8+ rep range. Also 5x5 is better for strength more so than size, that being said you will still put on some size with it but how much really varies from person to person.