So your suggestion is to make sure that the B3 draws are released prior to training? I concur with that suggestion.
Well actually maybe afterwards.... either know who your opponent is and be able to act accordingly with all the information you have to hand.
OR if you know your opponent before Fridays update, hide their GS/DMI til all updates have occured.
back to your point no1. If I draw you on the road next week..(nice thought :0) then you will still have the enthusiasm benefit and you will have the advantage of seeing my Gameshape before having to commit to your training for the week.(not that it might scare you sufficiently)
Point is now, Home advantage (fair and luck of the draw) can be added to by 2 further variables; Extra enthusiasm that is yours thru nothing other than default + the ability to improve your gameshape to better or match your opponents if you see they have had a very positive or negative GS update.