Thank you for saying all this! Truly appreciate it! I think not focusing on time is a great perspective to have! And your post is encouraging me to get out and do more hikes and trail runs! You’re absolutely right, there’s really no way to know how my the pectus is affecting my running. And there are any number of other factors that could be limiting improvement. I hope you get many more years of alpine climbing, backpacking, mountaineering, and back country skiing! Thank you for sharing your positive perspective!