Glad you got some shooting in, Mike. Lots of time left to improve your scores.
I thought an aiming bud would be necessary for me and made up some 1" squares, however
with a black and white printer, I can see the diamond aiming spot just fine. It is a little bit small,
but I've found the smallest target spot you can "still" make out, will give you the tightest group.
I believe it is in part, a psychological thing with bullseyes that are too large. In psychological
aspect of it is similar to when shooting at a large target instinctively with a bow. When you have
as large aiming spot, your group will also be large.
Aim small, miss small comes to mind.
With this in mind, I am thinking a 4" or almost 4" circle is way too large for 25 yard shooting. Just
as suggestion, so please take it for what it cost.