In a large bowl stir together the eggs, and sugar. Stir into the egg/sugar mixture your 5 cups of mashed berries. Stir into the egg mixture your 4 cups cream, 2 cups half and half. Off heat add the vanilla and salt.
Pour into the canister of your ice cream maker and freeze according to the directions on your ice cream maker.
This recipe uses raw eggs. If you are not comfortable using raw eggs you can follow these instructions:
Beat you 6 eggs in a bowl. Make sure they are completely beaten. Pour the cream and half &half into a saucepan. Heat on low stirring often until it is hot (bubbles around the edges). While whisking eggs, add a little bit if the hot cream mixture at a time. Very important that you keep whisking. The hot liquid will cook the eggs if they are allowed to be in contact with the eggs without whisking. Continue whisking and adding cream until you have added about 1/3 of the cream mixture to the eggs. Your eggs are now warm enough to add into the cream mixture. Cook stirring continuously until it is hot. Remove from heat and add the vanilla and salt. Pour into a bowl and cover with plastic wrap so that it is touching milk/egg mixture (So condensation doesn't form and drop into the mixture. Cool overnight. Pour into the canister of your ice cream maker and freeze according to the directions on your ice cream maker.
What to do if you accidentally curdle some eggs? Just pour your egg/cream mixture through a fine mesh sieve. The curdled eggs pieces will be strained out.