I have a bottle of Falco Tempo booster. I am curious about trying boosted h3 of some sort. My bottle says that the boost effect is efficient 2-4 weeks. They market falco tempo long with "efficient 8 to 12 weeks". Is the difference really that big? What booster has longest effect? What is the best price to performance ratio booster?
I think the selection of a booster is a personal thing that must suit your playstyle. Personally, I use Falco Tempo Long and for me it's excellent, but I know people who benefit more from Haifu or Kailin. I have 3 rubbers (Jupiter 3 38/39 and H3N Blue National) boosted with 2 layers of each different booster, so my experience is:
1)
Falco Tempo Long - the package says it lasts 8-12 weeks. Personally, I haven't seen drop in rubber performance even in 3 months. Maybe that's because it deforms the rubber forever or maybe because the drop fades so slowly that I can't see the difference. Also, the speed boost is moderate while the spin boost is excellent, and as a player who tries to win points via placement and heavy spin, I prefer Falco Tempo Long the most.
2)
Sea Moon Haifu National - for me, the booster effect faded in about a month. The speed increase is noticeably bigger than of Falco, the spin is about the same. The only difference in spin is that the ease of creating spin is better with Falco, while the top-end spin is higher with Sea Moon.
3)
Kailin - for me, it's Sea Moon on steroids. The effect fades away even faster, probably in a couple of weeks, the nominal spin is about the same as with the other 2 boosters, while the speed and top-end spin are crazy. It's like an F1 racing car for me and a bit too much.
In conclusion for me,
Falco Tempo Long is a clear winner in every category: lasts longer/forever, makes spin easier, costs less (€)/ml, and speed is manageable. But it's a very personal choice, and I am sure most professional players would prefer
Haifu or
Kailin.