I'm setting up a new portfolio margin account at TDA to see what I can do there, as IB is really too limiting with their internal and also secret or at least opaque margin rules.
So I just funded an old empty account at TDA with $200K a few weeks ago, but was waiting to get approved for portfolio margin. Got approved 2 weeks ago, started trading, and I'm up 2.5% without much drawdowns, and after spending $1K+ on commissions. The goal is to make minimum 10%/year with max 2% drawdown, which can be scaled to, say, 50% with 10% drawdown, so with the right opportunities much better performance than 10%/year is possible. Maybe it will be 10%, maybe 100% in a year, we'll see.
Most drawdowns/volatility may actually happen due to TDA unable to price some options properly, such as on illiquid stocks, LEAPs, OTM options, and anything with wide spreads. Sometimes MMs pull their quotes after hours and suddenly my account value drops by a large %, though coming back to being more stable when the market opens.
I may setup a new journal just for the purpose of tracking/demoing performance in this account (it's a live account, not a demo).
This isn't my main trading account, but setup only for trading a few strategies, part-time, when I have the time.