You can cut off the first "wing" and plastic all the way back to the beginning of the 2nd "wing". This will reduce reception a bit but you should still see about 75% of the gain that would have been available from all 3 wings. That may or may not be enough to provide the necessary clearance. If not (or even if it is), I would add the Sensar Pro to allow you to correctly point the antenna for best reception plus add a secondary inline amp to boost those weaker UHF signals (it will boost both UHF and VHF but the UHF seem to be the most frequently complained about).