🚀 go-pugleaf

Got a few questions here.
1. I heard that carrying an item in each hand, for example a rifle and a
motion scanner, decreases the accuracy of the rifle. Is this true? Or does
accurary increase when nothing else is being "used" ?
2. If you quit researching something, and later on restart researching it,
do you have to start all over or do your scientists pick up where they left
of ?
3. Somebody told me there's an 80 items limit on the skyranger. Does this
affect the amount of alien equipment recovered from a mission or not ?

Jef