Either you are attaching the tapes (probably the lowers) too tight (or if at their limit, you're wearing too small of a diaper) or you are damaging them with your clothing. I've had diapers that otherwise would be ok for all day split right down the middle in the back due to getting worn and weakebed by the crotch seam in my jeans after extended wear and activity. Or it could be a combination of the two. But most likely your lower tapes are too tight. (and you're splitting them when bending over?)
I also occasionally want a "more snug feel" from my diaper, but in the end it just ends up being uncomfortable or ripping a tape or something, so I just ease back and go for a more "relaxed fit". If you want that snug feel all the time, it's going to be really rough on your diapers - they're disposable and just not designed to be that sturdy.
After years of diapers I've decided to jiust stick with snug but comfortable. They don't fail, are less likely to leak, I can get more capacity out of them, and they're comfy. And that helps me get the moist enjoyment out of being diapered 24/7. I'll still occasionally tape up something extra snug for the novelty of it, but I'm not expecting anything else ouf of it for the short while I have it on.