Mousse inserts and inertia

[highspeedsteel]

Does anyone here use the Michilen mousse inserts (or any other brands).

I have had them in my bike since I got it and I think although its great not getting flat tyres they seem to have quite high inertia making the bike harder to turn/lean then you would expect. I think the increase in weight at the outside of the wheel is a problem.
I never really had many flats with heavy duty tubes and I am probably going to switch back next time I change my tyres.

Anyone else think the same?