Yes, you are both right, JKH is worse for Seniors than Juniors, and the reverse is true for Venoms. Well, that was the case with the 2001-2003 homol, but now both have tried to sort the problem. JKH have introduced a new wider V4 kart, which is quicker in both Juniors and Seniors, and Venom have introduced separate Senior and Junior karts, the Sidewinder and the Shadow.
Would still say Venom is the best chassis for Seniors atm, and JKH for Juniors, largely because it's difficult to change trends where most of the grid is on one make of chassis. You need one to jump first and show improvements before anyone else follows. FWIW, recently I've switched from my traditional Wright to JKH, and "joined the fad" so to speak, and I can't see much difference between the two karts when they're both going well, and the JKH brake is much more troublesome, but it's just more much consistent, and you can spy on the others settings
