[Lags]

A handful of spells and calculation does take more skill than running and using LoS imo yes. It's about using math and reaction and cleverness, instead of just reaction and cleverness avoiding LoS for fizzle PvP.

Actually I would say that spells and calculation is also used with fizzle. It's not like you can just rely on line of sight to save you, you need to know the spell timings just like you do with IN UO. If you cast FS on me I can quickly cast lighting on you to fizzle your FS. Or, I can cast FS after you cast yours, making you think yours will land first and fizzle mine, but I LOS and land mine.

Both styles use tactics and require skill, just different ( ok maybe fizzle does require a bit more finesse and skill )