Contract Balancing

General discussion
1

Is there a use to balance out contracts between the different size of planes? For example, what percentage of contracts at INN should be S and M? While I certainly wish to raise my XP at the airports, I am more interested in silver planes to get to gold. Do larger planes give more silver planes than smaller?

2

Here’s the screenshot of the difference between S and M:

Screenshot_20230902_062449
Screenshot_20230902_0624492340×1080 271 KB

Screenshot_20230902_062523
Screenshot_20230902_0625232340×1080 271 KB

In my opinion S is best for XP and M is better for SP