Not DIR, but like many have similar gear configuration ideas due to comfort, ease of use and function that i like and appreciate. I also try to eat well, exercise several times a week and to perfect those skills every time i am in the water. I already have my BP/Wings (zeagle) for use in technical stuff in the future and will run a long hose and bungeed short (not due to DIR, but accepted practice in general cave diving). I use inner tubing to snug things up on my webbing to streamline and try to get things in a reasonable order/place/configuration to suit my use. I am also looking at a can light and will probably place that where it is also deemed DIR to place - due to convenience, not sure what else, but i do keep a weather eye on the DIR forum to have a check on things and ask others about equipment, training, technique and the like when i believe there to be an issue that needs to be addressed. I know i am a pretty poor diver at this time, but i am still working on it and trying to get all my ducks in a row! Oh and i am interested in getting the DIR/f book, i also have a whole library of other diving materials to help to understand the why for's and wheres to what i am doing, techniques and special considerations for types of diving i would like to do and will hope to train for in the future - kind of like prepping up.