The lawn bowling clubs I belong to in Canada have special events called Pizza & Play where the bowling is exclusively the 4-3-2-1 variety. I rarely participate. I find it too simple tactically. However, if one decides to play one needs to understand that the strategy for winning is different.
In regular lawn bowls a person or a team must have the single best bowl ( called ‘shot’ ) in each end to score any points at all. As a consequence, obtaining the shot bowl is absolutely essential. It is the only priority. Playing 4-3-2-1, one is awarded 4 points for that best bowl but also 3 points for second best, 2 points for third best, and 1 point for fourth best. In other words one can score (3+2+1= 6 points) even when you do not deliver the traditional shot bowl.
Because scoring the shot bowl is so essential to the regular lawn bowls games, particular bowl placements are designed to protect a shot bowl (blockers, catchers, back bowls) and other deliveries are designed to disrupt the nearest bowl placement (overweight shots, drives).
Playing 4-3-2-1 is essentially a game whose outcome depends on the precision of one’s draw shot. Every delivery has a single goal, getting close to the jack. There is no necessary need to have the closest bowl; the 2nd, 3rd, and 4th closest can accumulate enough points for you to win. There is no need to defend the show bowl or attack a shot bowl. There is no need to worry about displacing your own shot bowl. Just keep smoothly drawing to the jack- delivery after delivery.
Enjoy any pizza. Enjoy the socializing. But don’t confuse it with practice.