Dennis,
You are absolutly correct. BUT for someone that has not soldered before they could potentially cause MORE problems if they are unsure of what they are doing. That's why I suggested something like the Hitec servos that already come with longer leads.
Bemyself,
If you do decide to solder extensions on, consider going by the LHS (or Tower, ebay etc.) and purchasing the ready made extensions and then clip one end off the extension and the end off the servo lead and solder them together. And be sure to use heat shrink covering on each wire and then a single piece to cover all of them to ensure a good connection.
ORIGINAL: DBCherry
Connery,
It's actually a pretty good idea to cut and solder in longer leads. Too many connectors can reduce the signal stregth to the servo and cause glitching.

Dennis-