That is a good win for a base spin bet, I always wanted to hit that kind of multiplier for my base spin tumble because it prolong my gambling session. Anyway, I also think that if you keep on playing, you will soon hit that dream multiplier, gambling result is random so who knows what surprise you can get on your next Pragmatic Play game session just always remember the law of averages.
Today after reading your post I tried to play Big Bass Splash by Pragmatic again, and my aim was getting 3 scatters and see what it gives me. I did hit 3 scatters pretty soon, after like 5-6 spins, but in the end I was a bit disappointed by the results. I won $2.40 with my 10 free spins, and although it wasn't that bad, considering that the base bet was just $0.20, I must say I was expecting something better. (Unfortunately images from imgur aren't showing on bitcointalk and talkimg can’t be reached right now, so although I did make screenshots, I can't show them).