No I didn't, but I have a LOT of experience switching out bands and working on watches in general. For someone less familiar or without the right tools, yes I can see where it would be a bitch. A slight bend in the middle of the spring bar definitely would help make the process easier. But be careful, as they are 21mm spring bars, they don't exactly grow on trees or are stocked at your local Walmart.
Thanks for the tip, I think I might have some spare 21mm but I'll be careful for sure.