What I did is use tie wraps to connect the rear screens tightly together, this was a suggestion I found somewhere among the forums, and 22.1 comes in solid, as well as 3.1 and all the others. From what I've read, tying the two sections close helps with VHF reception.
I,ve done the screen tying but I had to weld them as they are now coated with paint.
anyway 22.1 is ok so no problem with VHF but 3.1 is UHF53 and this is where I'm having problems I think it's related to the "boost clipping" induced by the strong 17 and 35.
I get all analogs from montreal, burlington and sherbrooke. (and sherbrooke's are as clean as montreal's channels) so far no 57.x (but I don't care)
People may ask why we get better reception in the Laurentians ? : elevation at my antenna is 263 meter over sea level. This is the trick.
Location, Location, Location...