What a load of rubbish. At 110+Kg I've been through instructing, piston charter, to turbines without a worry in the world.
If the operator is more worried about stuffing an extra 20-30kg in the aeroplane than finding the right pilot to fly it, then go find another operator.
LOL ... glad I don't have to share a 152 or J160 with you, 110 + 100kg + full fuel = flat round black things that keep the wheels of the gravel.
