Right, every time you spin the wheel, the odds hitting L M or H is reset to equal. The past performance is not carried to future, so the next spin can hit either L M H equally (Odds = 12/37 or 32.43%). This we talk about the odds of individual spin, but when we talk about 16 spins as a whole then L will at least hits once in 16 spins. The odds of not hitting L in 16 spins is 0.1887% which is calculated by
Odds = (25/37)^16, so Odds = 0.001887 or 0.1887% or roughly 19 times every 10,000 spins. In simple words, by stats if we spin 10,000 times, we will witness 19 times of "no L in 16 consecutive spins", 19 times of "no M in 16 consecutive spins", and plus 19 times of " no H in 16 consecutive spins".
Above is just a math/statistic thing.
