I have replied with my thoughts to a similar post somewhere before, but the ideology behind hunting the hides versus spot & stalk is a great discussion worth having. There are many pros and cons for the bow hunter to consider....
The vast majority of first-time bow hunters seeking a plaisgame safari in Africa do so with with the idea that this is going to be a "once in a lifetime" trip, and they will not likely make it back to Africa again. Most also have a trophy "wish list" of the animals they would like to pursue in order of personal importance, along with a set amount of days with the goal of taking as many of these species as possible. There is certainly nothing wrong with that mindset, and given these objectives, most PHs will likely suggest that best game plan for their hunters to have the most shot opportunity will be hunting from the hides at water and/or food sources for the majority of the time spent in the bush. Still, with that being said, any experienced African bow hunting outfitter should be willing to offer spot & stalk opportunities and even encourage them when the conditions dictate.
The experienced bow hunting outfitters will almost always have scores of trail cams deployed to keep track of the latest movements of the various species. Additionally, the best outfits will utilize any number of different hide configurations including elevated hides, dug-out hides, tree stands, pop-up ground blinds, and even makeshift brush blinds when necessary to get on a particular animal that won't follow the script. In my experiences having hunted with many different African PHs over the years, the very best and most knowledgeable PHs will have all of these options included into their game plan along with the willingness and eagerness to spot & stalk as much as the client would like.
Now, here is the big disclaimer for those bow hunters who prefer to spot & stalk over hunting from the hides: It is important for you as the hunter to understand that a big part your success will depend upon your own level of skill, experience, and dedication when stalking with a bow. Stalking will increase the challenge for success exponentially, and the hunter's expectations must be adjusted according to that level of challenge. When planning the safari, each bow hunter needs to decide if the thrill and challenge of the stalking experience itself will be the priority over putting an animal in the salt. If that answer is yes, and your expectations for stalking success are realistic, it is, by far, the most rewarding way to take an animal in my opinion... On the other hand, if getting as many of your wish list species is the priority for your particular African bowhunting experience, then the majority of your time in the bush will be best spent hunting from the hides.
The best part of this is that Africa is a bow hunters paradise, and any hunter would be hard-pressed to find a destination that offers more opportunity at so many different species in one place. Because of the variety of species Africa offers, your opportunities should be plentiful. Additionally, some of these species are much more conclusive to be hunted spot & stalk than others, and your chances will be greater focusing on those particular species. An experienced bow hunting PH will have an intimate knowledge and understanding of the habits of these different species, and can advise on which species will offer the best chances for stalking shot opportunities.