I think there is going lot be a lot more aerosol packaging in the future as it becomes more accepted. Sonax have been doing it for years and many have said that aerosol is somehow an inferior delivery method, but I've found quite the opposite.
We have a Somax product in Europe that I dont think...
CQuartz says the beading/sheeting drops off after about 6 months and recommends regular applications of Reload and I suspect most other brands make similar suggestions... I think the idea of maintenance products to keep max performance is nothing unique to Sonax here. Most of the consumer...
BSD is also a lot less grabby if you use Sonax shampoo - like Deep Gloss etc. They seem to play much more nicely together than a different brand. i tried it after an ONR wash a few times and it streaked and was very grabby. I dont tend to use it much really though.