Guys please, "kol sheino yodeai betiv gittin vekidushin al yehi lo esek imohem"
I highly doubt anyone here has studied Even Haezer aliba dehilchasa. To regurgitate a few gemaras that we remember from 10th grade gittin is nice but totally irrelevant to the issue at hand.
Ahh... so commenting in a thread on DDF is considered
esek imohem, I should have realized that [/sarcasm]
PG and henche are asking a good question, every husband who's withholding a get for custody reasons should give a גט בתנאי מעכשיו, because then the wife will be able to remarry but if she refuses the husband the agreed upon custody/visitation it will invalidate her second marriage. I'm suggesting a reason why that approach is not valid, which would explain why it's not commonly used to resolve these situations.