Hello everyone! This is my first post on the forums and actually my first time here. I am a beginner beekeeper and I'm just assembling my first box and frames using wired (vertically) wax foundations. Anyway, I've assembled 2 frames so far, being extremely careful to check for squareness along the way. When I place the wax foundation within the assembled frame, it's slightly bowed because the foundation is slightly taller than the space in the frame. It's not extremely bowed, but it's noticeable. On the first frame, I actually trimmed off about 1/8" to make it fit, but I'm wondering if it's necessary to do it for all of them? Thank you!