depending on the species and the size of the fish you are pulling, a lower gear ratio is usually prefered for winching big fish out of the reef. a low gear ratio allows for more pulling power simply speaking. As to level winds..... level winds are ok, however if u get a hard running fish u can blow the sacrificial gear that drives the wormdrive. this is a saftey measure to prevent damage to other components and is relatively cheap to repair. However if it blows the reel is basically out of action til its fixed/line feeder ripped out. Most ppl go for non level winds for serious work offshore. u will get used to fishing without one relatively quickly and a tip is to not fill ur spool right up so u can allow for a bit of a line mound in the middle of the spool when ur pulling a big fish.