I agree regarding running 100LL for the first 50 hours or so. In fact, the new ECI cylinders on my 0200 recommended (maybe required) 100LL for the first 50 hours. The lead helps build a 'cushion' between the valve and the seat and promotes better seating in my humble opinion. At near 100 hours I still run a pretty heavy mix of 100LL and auto fuel but am gradually 'weaning' it off and on to 91 octane auto with an occasional drink of 100LL.