Obstruction question

[DaveASA/FED]

If you look at the defination of obstruction on page 28 it doesn't mention anything about a thrown ball, if you look at the rule suplement on page 129 (both 2011 book pages numbers) it clearly says the intent of the rule. The following is from there "In past years, coaches taught their players to block the base, catch the ball and make the tag. Now defensive players must catch the ball, block the base and then make the tag."

This makes it pretty clear to me that the 4b "or thrown ball" was missed in editing.

Also posession is judgement but would you call someone out on a force play with the ball juggling in the mitt?? No you would say "no control safe", so to me this is the same in your case at the plate, no control = no posession so possible obstruction. Another note though obstruction doesn't release the runner from having to touch the base. So you could still have an out on the appeal of R1 missing home.