Mmmmm.... swinging between the more stable 15ft Apache and the 16ft Tribe..... the 16ft Apache was a little tippy feeling for me... High centre of gravity etc!!! LOL
It's important to look at the sort of paddling you want to do, before making a decision on which boat you buy, then look at the various ( more or less 4 in fact) basic hull cross sections. Take a look at this thread for some info on hull cross sections and their relevant suitability:
http://www.bushcraftuk.com/forum/showthread.php?t=116
While the Apache 16 may have seemed "tippy", after a few paddle trips and ideally, some professional coaching, you would find it would become "lively and responsive."
I was fortunate to receive some top level, professional coaching from a local lad-
Kim Bull. After which my confidence and ability increased in leaps and bounds. I had heard all sorts of stories about how the Apache was tippy but I found it a cracking boat to paddle, if not exactly to my own taste.
An awful lot of people buy canoes on recommendation and end up with boats that simply don't suit them or the paddling they actually eventually wanted to do.