Best Rig for Small Inland Boats?

[Ahnlaashock]

The Lateen rig is simple, cheap, and effective to a point. So far I can't get it to go to windward very well at all unless I have good wind, and then I have to ride the ragged edge to make decent progress upwind. Since I am mostly sailing to be sailing, that has been okay up to now.
The little bass boat I have converted to sail is going to need a rig of it's own now. The Snark rig is simply too light for it, and the mast is way too small to have that heavy and stable a hull under it. I am thinking a simple rig like the Lateen, only standing straighter up and not going past the mast at the tack. Instead of sliding up the mast, the sail would be socked onto a yard like the latten uses, but the yard would be pulled staight up and use a more normal shaped sail. The boom would still be joined to the yard as on the Lateen, but with that corner also attached to the mast by a collar. Only down side I see is no way to reef. Pulling the mast would still dismantle the rig for transport and it should take no longer to rig. The complete rig rolls up and slides into a tube for transport.

Being a beginner, I figure I am missing something! What, in your opinion, is the best simple unstayed rig for small inland sailing boats and why?