If you can get a high 6 figure or even a 1m trading account and make a modest return its much better than trying to get 1000% returns on $10k.
As true as that obviously is, that's irrelevant to this discussion: because of TST's very tight drawdown and scaling rules, it's functionally equivalent to maybe 10% the account size they claim when all is accounted for.
For example, the $150K combine's live trading starts with a 3-lot maximum size until you build equity, which then unlocks larger sizes progressively (like a personal account also does, depending on your money management). You're also never allowed to dip your balance into negative territory after the initial 10 days, where the maximum drawdown is temporarily if memory serves, $4500. So at $500/lot margin it is therefore equivalent to a $6K AMP account in that with that capital, after $4500 down you're out. At $400/month it takes just 15 months (less with resets!) to cost as much as blowing up a tiny AMP account.
So TST is just a tool to help people force themselves into a decent set of money management rules, it doesn't provide much access to capital at all.