Making trails for direction

[Rebenely]

Hello.
As the title suggests, I would like to create something like a directional fireball.
A quick search gives me http://game-editor.com/forum/viewtopic.php?f=1&t=11601&p=85046&hilit=trail#p85046 answer to a similar question.
It works well, but when the head objects moves fast, it doesn't look like a trail anymore. They are not connected anymore, they look like different objects in a line. See attached photo. Both pictures are supposed to be moving in North-West direction.

Is there another way to create a trail that would still look like a trail even when the object moves fast?
Thank you for reading my question.

[schnellboot]

Give the trace a little bit of speed too.
For instance if you have the speed 15 for the balls I would give the trace object a speed of 10.

[Rebenely]

That works, thank you!