How to compare: log ticks or spread at entry on each account for EURUSD, 08:00 to 12:00 London, for a couple of weeks.
A worked example with plausible numbers:
- Standard account, no commission: 1.1 pips.
- Cent account, no commission: 1.6 pips.
- Raw account: 0.15 pips plus 0.7 pips commission equivalent, about 0.85 in total.
That changes what the cent test tells you. If the EA survives on the cent account, it should be fine on raw. If it fails, it might still be fine on raw and the test was too harsh. So adjust cent results for the cost difference before deciding anything: add back the extra spread per trade and recompute.
Has anyone seen cent accounts with spreads close to standard? The markup probably varies a lot between brokers.