Rebreathers are much like women in many respects, including the total costs and effort required to acquire and maintain one...versus their attributes and the benefits they provide. Both are complex entities which, under certain circumstances, can be downright dangerous. In both cases, we each begin looking for the 'perfect' combination of attributes and benefits. What we usually settle for is a strong function of how much money we can afford, and how much we're willing to compromise on attributes and benefits...
My counsel in both cases is:
* Study the candidates thoroughly, using all available resources
* Seek advice from experienced and reliable friends and colleagues
* Take every opportunity to 'try out' as many as conditions permit
* Screen carefully for the attributes and characteristics that best fit your
personal needs and desires, and provide the greatest 'safety' for the future
* Take great care, especially during the early months / years of gaining experience,
until you're sure that you've learned to 'do it right'.
* If necessary, seek professional help.
* Make the best of what you settled for.
Remember that its your choice and responsibility.....and you're the one who has to live with the results.
Good luck in these challenging Quests
Dan