Hello Quint.
Yes you are missing something ! I use the out of hours prices when trading because it's easier for me to do. When I post and say a differerence has been achieved on the close prices, it doesn't mean you have to get on straight away regardless. Futures prices are different from prices during the day but you can wait until the next day when the prices run more in line to get on the trade. I give a 25 point leeway because of futures prices which is usually enough
If futures prices are not favourable I wait until they are, which is usually the next day or so. This system has an 84% strike rate and has produced great profits over the last year, even if you jumped in everytime on unfavourable futures prices !
Hope this makes things clearer.
Regards
IK