As a guitarist, I do everything from a solo show to an 8 piece band. I built a rig that uses a Crate CPB150 and a Behringer 8 Ch mixer. The only case that fit perfectly is the GK-2110. No alterations or adjustments necessary. This rig was on the road every weekend for 24 straight months, until I purchased a new powered mixer. The new mixer is housed in a Gator GR-3S. Here in Detroit, we go from 90 degrees in the summer to -10 on the coldest winter days. At times, other gear gets thrown on top, or something “tips” over. So far, both of these cases have come thru with flying colors, and are still in excellent condition. If you make cases, you know the rigors of the road. My gear is well protected. And finally, I notice on the Gator website that the cases are designed in the USA. Thanks for making an excellent product!