My own experience has been that the vast majority of flats I get are on contaminated highway shoulders, so I'm not so sure if you are riding on good paved roads that is a superb record. The additional substantial weight of Tannus is seriously unappealing to me.
There is a lot happening in the tire insert space, and in particular mountain bikers have been busy and extremely creative. When I see products like the
Huck Norris it gives me hope for the future -- basically you could limp home on most flats and not damage your tire or rim in the process. And the Norris is about 25% of the weight of Tannus Armor and is much easier to install as well.
My record is three flats in two days. I don't envy you on that one.
The very best patches are the
Rims Tip Top Patches, while the very best case for patches has to be the
Park Tool VP-1 (it stays closed and is smaller than the Rima box). They are both cheap and I recommend putting the Rima Patches in the Park Tool box. You can also buy Rima patches in quantities of 100 -- but that is more flat tires than I care to contemplate. My own experience is that the cement goes bad long before you run out of patches on average.