Hmmm, I’ve never had a problem with Beta Fuel clumping.
I generally start my long (3+ hr) rides with two bottles of GO FAR (Infinit Nutrition), and then when those bottles are empty I refill with SIS Beta Fuel from sachets. I tend to drink ~ 1 large bottle every 60-90 minutes, and I take in 1 SIS Gel or Honey Stinger Waffle in that same time frame.
The Beta Fuel mixes up straight away and works for me (note: I DO NOT have stomach issues). When I am over 3 hrs I use take an SIS caffeine gel as my last gel.
As for taste, the Beta Fuel is much sweeter than the Go Far. Not surprisingly, Go Far is 280 cal per bottle and Beta Fuel is 320. More sugar in the Beta Fuel and therefore sweeter.
Am about to start experimenting with Beta Fuel from the start for races in the 3 1/2 - 6 hr range …