Good news – the actual final TT result is correct. What I was worried about was that the 'Charity Limit 1' form puts my cash contributions on line 7 (cash contributions to 50% limit organizations) rather than on line 1 (cash contributions to 60% limit organizations). But then line 9 somehow properly applies the 60% rate. This is confusing, but the actual calculations are correct. So you can close this request.
