I think its cool educational-wise!--But those seals just make me wonder how long before they dribble from real use & Adj. lash every so often???--How many hrs. on her so far?---Respectfuly---RICHIE///-For as use as a teaching tool -I love it!/If intended to run on the street ,what kind of seals did you make?-to be able to hold-up against dirt & roadrock -,sand -wearing them away?/Just curious & Kudos on a nice job!