Both read out of hand velocity, the Stalker reportedly rounds Vel down and the Jugs rounds Vel up so they (Jugs) in general tend read a little higher. With the newer Stalker you can get both out of hand and plate. There are lots of ways readings can vary as mentioned in some posts above. The Stalker can pick up readings at farther distances hence the reason for it being the standard for scouts.
Dads are reported to round velocity up, depending of course who they are talking to and how much alcohol has been consumed.
Person Round up factor
Son +0
Close Friend +4
HS Coach +5
College Coach +7 (The reason for the HSBBW Dad – 7 rule)
Pro-Scout +9
Guy on the street +10
1 Beer +2
2 Beers +4
3 Beers +7
4+ Beers +11 (Notice the non linearity of the readings)
Six pack+ Mumbles stuff about son will be signed in the 1st round of the MLB draft.
Passed out+ Dreams that he is actually his son. (we won’t get into the psychology of this here this can be found on HSPBBW)
Scouts and College coaches have reported a very wide range of readings most commonly found while talking to dads after 3+ beers.