Soulfire you cant analyze by that method, because those trades were arbs, so you need to know what combinations were used, you cant just look at the per-pair gain/loss, and myfxbook doesnt show that unless you manually group them by open/close time. Did you do that? Also, McLean said that the results are only valid for the past 2 months, did you apply that filter?
When I filter back to 4/10 as custom date, then look at the summary, only EURSEK looks to be an exotic that gained many pips - but again, unless we know the full arb we cant tell for sure what the TRUE trade result was.
The underlying point is valid though, it would be good to have some way of ranking "arb quality", since it may present a MM issue to try and hold more than X arbs at a time.