You know, that 'TOA' is a slippery thingy. It's nice to have, but not all signals arrive at a low 'TOA', some of the time they sort of 'drop' in on you for whatever reason. I know that I like a praticular type of antenna that is purported to have a very high 'TOA'. It seems to have done about as well as any other, and in an instance or two it's certainly 'bested' them low 'TOA' antennas. It depends to a great extent on how/where an antenna is placed. Not all places are equivalent to each other, so you have to see what works for you (and what doesn't).
The only suggestion I can give is to try a few different 'kinds' of antennas, see what works for you in your particular circumstances. It doesn't matter who makes it, or what kind of antenna it is, if it works, it works.
- 'Doc