Paul,

The problem is that they don't extend at all! After a close-up inspection on one of them I've concluded that the fault is on the switch! Maybe it fails due to vibration?

After 20 days of silence from Horizon Hobby, they replied to my last email within 9 minutes (after sending them the link of this thread, in order to clearly read my situation).

Here is a quotation from their e-mail

Q U O T E

Thank you for contacting Horizon Hobby Product Support.

Product Support does not have the time to read forum posts.

If you would like to send in your product for warranty evaluation, please visit our online repair request form:
http://www.horizonhobby.com/Service/RequestForm/

Consumers outside the US and Canada should contact their local retailer or distributor. A list of International distributors may be found at: www.horizonhobby.com/StoreLocator.

Be sure to use a shipping method that will provide you with a tracking number and insurance as Horizon Hobby is not responsible for items in transit.

Be sure to include, the Service Center Request form, a letter describing the problems you’ve had, what’s included in the box, a copy of this email, your complete name, address, and a day time phone number.

Remember all warranty service requests must include the proof of purchase.

All non-warranty services are charged a minimum of ½ hour of labor and labor is $30 per hour (subject to change without notice). All charges for service parts, labor, shipping and other fees are your responsibility. Nonpayment can result in confiscation of equipment.

If you do not fall under our warranty you have the option to purchase any needed part/s from our website and do the repair yourself.
U N Q U O T E

I am not willing to go into all this trouble, in order to have problematic retracts again, thus damaging any of my airplanes!

No more E-Flite E-tracts for me and a lot of our club members!