using lot 0.1 what is the recommended balance?
0.1 lot minimum balance would be $10,000
I would recommend using the built in SmartLot feature whereby it chooses the most appropriate lot size for your account balance.
The drawdown on my account is not caused by GridMeUpFX but other robots I experimented with early on in my trading life. I get sick of everyone seeing the MyFXBook summary and assuming the 70% drawdown was caused by GridMeUpFX (from memory I believe it was Forex Bulletproof that took out that 70% achievement). With the LossStopOut setting I use the maximum drawdown I allow is 40% before closing losing trades. This is still high but when you are grid trading you have to accept higher drawdown periods.