aside from the fact that recycle doesn't work on items that were knocked off, dipplin should never realistically be running anything besides sticky holdIn case of Eviolite getting knocked off.
syrup bomb is outclassed even with perfect accuracy. because it has lower damage output than stuff like giga drain and energy ball, its only purposes are speed control and forcing switches. the former can be accomplished better with either of dipplin's paralyzing moves (body slam or dragon breath), since paralysis persists even after a switch, immediately cuts speed by half, and has the haha heehee rng factor. the latter can be accomplished better with dragon tail, which always forces a switch instead of potentially doing soSyrup Bomb is a really good move with unreliable accuracy, so being able to hit things with it more reliably and potentially force a switch is very useful.