P.S.
Wow, we are breaking all kinds of records down here like "most days of 100+ degree temps" and "most days w/o rain".
But, shifting gears from our weather, if I remember, growing up we used a disk in Chicago. They are fast but if weigh it down w/a few kids or a parent, you can control the speed pretty well. After I got married we moved to Trenton, NJ and bought a tobaggan and it was awful. The snow was so fluffy we couldn't go anywhere. BUT our friends let us borrow their sled which looked like a low lying kayak and it was great. Their kid (maybe 5 or 6) had what looked like a plastic tobaggan but it had a ski under the turning wheel. I can't remember if she was strapped in or not but she scooted right along w/the rest of us downt he hill.
I miss those day and think of them often as I walk out of my house early in the morning and its 80 degrees before 8am.
Have fun!