Very nice addition of the double click to relocate gumball.
It took me 10 seconds to find a glitch 
(not too problematic, I’ll agree).
It you relocate the gumball on a straight line using either a double click or the menu option, then deselect and select the object again, the Z scale handle appears, though the object has no height.
This prevents from double-clicking on the gumball origin to relocate it again.
Yay, another one with SubD ring selection by double click.
Interesting. And it seems CTRL drag has been deactivated in V8?
I was happy with the CTRL drag method.
Guess the clicking order is too complicated for the average user?
I actually hate double clicking and I set my middle mouse button to execute a double click…
Regarding scale handles, this is what I see for a straight line and Gumball to Object in V7 and V8:
Yes it has 
Double click is much easier to teach though.
I added a video for the scale handle bug.
Gumball set to CPlane and relocate the gumball twice and the Z scale handle appears too…
thanks for reporting. RH-75851 Gumball shows Scale handle after relocating
This one is logged as RH-75727 double click for edge select and double click for gumball collide
yes, this is correct.
That, plus we needed to free up Ctrl for other functionality.
Thanks I added that info, I think it is related to the bug that @magicteddy reported.
