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My EURUSD edge is not complicated: London open range breaks, a few pullbacks, and a small number of fades in the late morning. On my own account it's been steady for years. On prop accounts, certain rules interfere with it, and I'd like to compare notes on which ones affect others.

The rules that have caused me problems:

Minimum holding times. One evaluation I looked at required positions to be held for at least a couple of minutes. A good part of my best EURUSD trades are done in under two minutes. That rule alone would have cut my edge significantly. I didn't take that one.

News restrictions that cover a wide window. Some firms don't allow trades within a few minutes of high-impact news. That's fine for me most of the time. But on days with eurozone flash PMIs at 08:15 and 08:30 London, a wide window around both covers a good chunk of my best hour.

Daily drawdown calculated from the day's highest equity rather than starting balance. If I'm up early and then give some back, I'm closer to the limit than I thought.

Consistency rules that cap how much of total profit can come from one day. EURUSD has occasional big days. A rule that penalises those effectively asks me to trade differently on good days.

Weekend holding bans are fine for me. I'm flat by Friday afternoon anyway.

Which rules have you found that clash with what you actually do on EURUSD?

LondonScalper wrote: Daily drawdown calculated from the day's highest equity rather than starting balance.

That one changes things more than it seems, because it turns a good morning into a tighter limit for the afternoon. Say the limit is 5% on 100k and you're up 2% by 09:00. With the high-water version the floor moves up to around 97k, so a pullback to flat plus a further 3% ends the day. With a balance-based version you'd still have a 7% cushion from where you are. For an edge that front-loads the best trades into the London open, one adjustment is to cut size or stop after a set gain, so the late-morning fades never get taken with the tight version of the limit hanging over them. On minimum hold times, checking how much of the journal's expectancy comes from trades under two minutes would put a number on that one.