This Quad is a Lightning Bolt 2 element model.  I purchased this quad about 2 years ago and have thoroughly enjoyed the use of it.  It has an 8 foot boom and is their tri-band version.  I ordered this antenna with separate feed points.  I have separate feed lines going to each of the three elements.  The reason for this is so that it can be used by 2 different stations/transmitters at once in a multi-two type contesting situation.  There is a quarter wave matching section of 75 ohm coax at each feed point.  I also have at the connector a tee connector with a tuned coaxial stub to help reduce interstation interference.  I have successfully used this antenna with 2 stations at once, both running the legal limit in power with minimal interference.  The antenna has very sharp nulls to the sides which is typical of a quad.  It is also much quieter than a yagi as far as static and atmospheric noise.  The design and construction of this antenna seem very good in my opinion.