Free shipping for products with weight = 0 or shipping class

Solved.

with:
0.0001|0|C1
5|5|C1
10|10|C1
15|15|C1
20|20|C1
25|25|C1
30|30|C1
35|35|C1
40|40|C1
45|45|C1
99999999|50|C1

But “woocommerce_apg_shipping_maximo” needs to be disabled

@angelolazzari, this is my solution for last version:

0.00001|0.000001
5|5
10|10
15|15
20|20
25|25
30|30
35|35
40|40
45|45
50|50
55|55
60|60
65|65
70|70
75|75
80|80
85|85
90|90
95|95
99999999|100