Topband: 80M Dipole at 105 ft ?

[Bob K6UJ]

I am considering installing an F12,80M coil loaded, rotatable dipole on 
top of my antenna mast at 105 feet.
I have an 80M vertical with 4 elevated radials now.  What is your 
opinion on the 80M rotatable dipole
at 105 feet versus my 80M vertical.... (for DX)     105 feet would be 
3/8 wavelength high, not 1/2 WL which would be much better.  I know this 
is the topband forum but felt I would have a better chance of getting
information on this forum.

thanks,
Bob
K6UJ