Default Sending strategy

Most games start like "plan?".... This is kinda annyoung because the answer might be "send 3 if no scout".

Here is the answer (of a pro):

Without knowledge the "default" is: sending 3 to get knowledge and income.

Then you go for 6, up king end of 7 and go 10.

Knowledge can be a scout (enemies leak and you see units) or the speed in cleaning wave (e.g. you see spawn builds or just fast cleaning which shows "good" units or overbuild).