Studio Slips does tremendously good work, even on custom sized cabinets! I have learned that if I measure correctly (2 or 3 times!), you produce a product that fits perfectly every time! By my count, I now have 15 of your clamshell bags and 4 slip covers,  a significant investment. But I am glad that I bought every one of them. Here is why: I love having my gear protected by your products, rain, snow, or impact, when I take it out on gigs! I once had two tube combo amps stacked on a hand truck and tumbled the top amp (a Kendrick 1×12 tube combo) off onto the parking lot. It was in your double padded clam shell, and though it broke an EL34 tube, I could not find a dent or scratch. And after replacing the tube the amp has continued to work perfectly ever since! Thank you, Susan and Cole! I wish you every success, and I can’t wait to do business with you again!