[NLRS] 6 and 2 meter antennas

[kp hpjr]

GM,
I'm in the process of deciding which direction to go in regards to changing my 6 and 2m antennas.

Currently I run a 2/432 8 element Quad at 50'.

I'm considering the following antennas and would like some input from this group.

For 6m these have my attention:
DS50-4HP 50 MHz Yagi from Directive Systems http://www.directivesystems.com/
LFA 406-11.5'  4 element Loop Fed Array. http://www.texasantennas.com/index.php?option=com_content&view=article&id=218&Itemid=223
M2 6M3 http://www.m2inc.com/index.php?ax=amateur&pg=76

For 2m, These have my attention:
M2 2M9SSB or the 2m12
DSFO-144-12 from Directive Systems
LFA-902 http://www.texasantennas.com/index.php?option=com_content&view=article&id=214&Itemid=220


The LFA antennas look appealing if in fact they do what is claimed and reduce the local noise pickup. But I know of no one that has or uses these newer antennas. And I'm not really aware of how well they are constructed for that matter so any input would be great.

Choosing any of these options clearly leaves me w/o 432.

My only option then would be to mount a 432 yagi at about 19' on the side of our chimney and turn with TV rotor. At that height, how well will an antenna on that band perform? I'm begining to think that, for the most part, the only real contacts to be had from this area on 432 are what is available during the contests. So I would assume that even at 20' or so, I'd still be able to make the QSO out at a range of 100-200 miles w/o much trouble. Would this be correct?

Thanks for taking the time to look at these questions from a newb! LOL

Kirk, N0KK