Family Roller Blading

In order to try to get in shape, I've been trying to start roller blading.  As this is something Callan and Kinsley are too young for, I've been pushing them around in the double stroller on my roller blades.  Renee has gone a few times too.  Renee hates roller blading on hills, so when it came to an s-turn downhill I thought I could handle it.  The trouble was that with Callan, Kinsley, and the stroller I was trying to maneuver over 100lbs.  We went downhill, and I managed to stop them just before some weeds.  They thought it was fun, but Daddy learned that double strollers don't turn on a dime.