Hello Alfred,
You have a nice TVfool map to work from. Unless you are running a long 100 ft. plus drop of coax then splitting the feed 2 or 3 times a preamp is unnecessary. I would pull it from your system as it may be detrimental (IE overloading) to your reception.
The clearstream 2V is plenty of antenna for your application.
You mentioned a tree. Foliage is an absolute problem as it reflects, scatters and disrupts the signal arriving at your antenna.
I would test alternate mounting locations if possible. Sometimes moving an antenna inches improves things greatly.
You could try adding a VHF only antenna to focus on 7 and 9, then combine the antennas. However, that tree is working against you in a big way. I think if you can get a better line of sight, the 2V's VHF element can do its job.
Cheers.
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