Elevator Trim Push Rod - both attempts

Here's a quick flash-back regarding the assembly of the F-01401 Elevator Trim Push-rod:

What the plans ask you to do is countersink the outside of the #40 holes in both E-01401A-L & -R. What I did was countersink the inside of the #40 holes of both outer pieces. I obviously realised after I'd done it, which by definition, is just a little too late. Looks like I'm ordering a new push-rod.

I decided since I'd screwed it up anyway, I may as well rivet it together as a trial run using different rivets.

The top side was nice and flush...

The bottom side was never going to be totally filled in. Below is the shop head of the AN426AD3-3.5 rivet...(sorry - not totally in focus. It's not your glasses)

So I tried an AD3-4 and which filled out much better...

...and the next one...

Here's the difference between:

a) the AD3-3.5 on the left and

b) the AD3-4 on the right...

...and yes, I countersunk the AD3-3.5 hole a little deeper than the AD3-4 which does accentuate the difference - unintentional.

My first attempt was back on the 8th Oct but I decided to show the photos above as a comparison.

Below is the second attempt at the Elevator Trim Pushrod after performing one of those amazingly stupid actions only other people do.

(I'm sure someone broke into my workshop and messed my original one up - I couldn't possibly have done it.)

Ahhh, that's better - the spaces are much better.

Again, even though the squeezer took off a little of the primer, the flush heads are exactly that....flush.

Although on this one, I thought I'd try the AN426AD3-4.5 to see how it filled out. Actually not too bad on the shop-head side.

But sitting a tiny bit proud on the flush side - not quite flush.

I obviously ended up drilling that one out and installing another AD3-4.