Bottles get weight in the arse and midway between the tail and belly swivel. Slug in the chin may make it dig some more. If you want to experiment this is the place to do it. One of my sets is an new type of plug for me.
It has a 5/16th weight in its keister, and I figured I'd try the weight on the chin just to keep it chin turned down. It's minimal weight smallest of all the weights I have so hopefully it won't dig too much. Tried it in the sink last night and it flips over the right way. Have it in the truck to try on a local pond on the way home. Being new at this I should probably of stuck with simpler plugs but I 've never been the one to take the easier way out.