In short, it makes no immediate difference as every spin thereafter is randomized from the server. Nothing is set in stone until the last spin of the feature of course the chance of getting 4 jacks on gates is remote/impossible so if you have no stickies in place of merit then it's going to be doom!
@slotplayer I think got a monster win on his second to the last spin on Voltage, which could not really happen on Gates unless you'd seen a bit of sticky action previously (or landed 2 and 2 on the final two spins. Again, nothing is predetermined here, it comes down to each spin hitting the server and sending back a result. I'll also add that staking has nothing to do with any outcome. Always check Casino's terms and conditions for win caps etc... We don't cap winnings but they may do.