My training partner was ex Royal Marine and is now back in training for the Reserves. As a result my training has lost pace over the last month. For cardio I run 3 miles 5 times a week after work to home and on the fifth day run in combats and boots with a 15kg pack, but when it comes to body weight exercises such as push ups and sit ups etc I've noticed a serious decline. I was looking in to various training routines and thought about scaling down the running and adding the Insanity workout to my routine in the AM for a month or two to kickstart me back in to gear but am dubious about results/efficacy. If anyone has completed this training routine or is in the middle of using it, can I get some feedback on positives/negatives relating to fitness for phase 1 rating recruits? I am a male, 23, completed my pjft in 10 minutes flat, and can complete the push/sit ups with minimal difficulty. Is there any point trying this? Let me know guys.