One league I bowl in voted on a limit on pre/post bowling..3 or 4, can't remember.  Past that limit, a penalty on handicap is imposed (ie, 10 pin penalty).  Never heard of such a rule, but it certainly makes sure pre/post bowling occur with reason, not just because.

+1 I'd agree with a limit on number of pre/post bowls in a league season to weed out those who do it just because or who feel if they pre/post bowl on a different night they will have a better shot or fresh oil. I bowled in a Sun morning league last fall where there were a few teams who pre/post bowled a lot. Given most had legit reasons be it work, holidays etc but I was aware some did it cause they felt they were out contention or found a better shot on a different night in pre/post bowling. I personally hate teams that do this because I like most bowlers I'd imagine hate bowling against no one and not knowing if you won or not until after you bowl a game. Just my opinion.

Although the USBC rules involving prebowling have been changed, there is one USBC member who rolled three prebowled 900 series in one league within a four-month span ... and two of them are in the USBC record books, having been certified.

Robert Mushtare.

"Beat me in a fight." - BrunsNick

 I bowl travel league 1 weekend a month so i pre bowl once a month on my Sunday night league the 4 times rule would just not work for me

if it has been approved by the league officers then the house should go along with it .

I bowl in small houses and the owners need the leagues to stay in business. So better to work with the league than loose it .