Nan, I do hope your cross was a success but I'm one who does not hold that there is a correlation with flower structure.
So if you cross again, please go to this website
http://www.kdcomm.net/~tomato/
And under Culture take a look at how to make crosses.
http://www.kdcomm.net/~tomato/Tomato/xingtom.html
I think it's better to select for leaf form since PL is recessive to RL.
That means using as your female receptor plant one that is PL, and using pollen from an RL to cross with. And bagging any one cluster to pretect it from any X pollinations.
Female is PL, male pollen is RL, so look from saved seeds for those that are RL, which will indicate that the cross took. Plant out those saved seeds again, to be sure and that since not all ovules,seeds to be, in the tomato ovary will always be fertilized.
Others have used this method with great results.
Who is Keith Mueller?
He got his MS degree with Dr. Randy Gardner in NC and Randy has bred many many wonderful varieties,he's a professional. Some of his are the Mountain series, Mountain Magic, Plum Regal, Smarty, etc.
Keith knows more tomato genetics than almost anyone I know.
Look at Keith's site again and please note all the wonderful varieties that he has bred as well.
Just a suggestion to consider if you want to do more crosses.
Carolyn