Hi guys. Looking to purchase a small 3 point cultivator. Mainly for loosening dirt prior to planting and weed control and cultivating during growing season. I see the flat bent spring type with pointed shanks and also the " Danish Spring" type which are more round and a more peculiar bend with sweep tines. Any advice as far as the advantage or dis-advantage of either type would be appreciated. I do expect to have a fair amount of weeds since I will be using no chemicals.