i think its a great idea... all that cardio is eating away at your muscle!!
and to be perfectly honest, your fit enough that a 30 minute run doesnt burn NEARLY as much as youd like to think it does.. at least for you (id be willing to bet) I think youre way better off moving to more strength focused training ( which CAN BE a cardio workout by itself!) do you train at home? or the gym? is kettlebells your only stlye of lifting? Perhaps itss time to move to the "big boys" area KWIM? Tine to start doing some heavy lifts, especially if youre eating around maintenence--> perfect time to start building a little muscle
My 2 cents, anyway.. i think cardio is WAY overrated (this, coming from a marathon runner)......... really, the few hundred cals burned, at best, doing your cardio are NOTHING caompared to what you burn just MOVING around in a day.......Get off your bums people!1 lol youd be suprised...... microwaving your lunch burns 10 calories, for example... cooking dinner (involving prep work and cutting veggies and weighing foods, and cleaning pans, etc, CAN BURN UP TO an additional 100-200 cals, JUST BECAUSE youre standing, and moving around! (and these cals, btw, are from Low grade activity, which = fat)
Ok-- off topic, I'll get off my soap box now