I am not tall - 5'4'' on a good day and just started using my original Ristretto for MacBook Air 11'' along with an Absolute Strap. The Ristretto flops against me as I walk, and I think the vertical orientation is not ergonomic for me. Has anybody else of similar height experienced this? Strap is great, though. I previously used a Patagonia Mini Mass and liked it much better for the "feel" while walking.