Tickstory

Hello, another question about the simulation ticks. In MetaTrader tester minimum time resolution of 1 second (modeling time), but for 1 second can come a few ticks, a different number. Do the ticks in the tester timing inside 1 second or arranged randomly?

Please, help me with comissions:

http://www.forex4you.com/en/account/con ... 1449080679

Commissions 10 USD per lot, but comission charged every trade depending on the lot size

How do I set up a commission correctly? thank you