Algo switching is complicated, really complicated as it is affected by many factors from including individual blockchain networks' stability and accuracy, statistic gathering site's accuracy (such as WTM), Pools profit reporting accuracy (Yiimp, MPOS), Pool Luck, number of miners mining the coin/algo, TTF block, pray you didn't mine on the wrong chain on a chain split....etc. and a lot more.
Most are truly out of AMs control but some you can alleviating by carefully selecting your own pools, IMHO, AM's true potential doesn't lie with Profit Switching with its own Predefined Online Services, it's mere an introduction or a workaround for ppl who are looking at ease of use tools like NiceHash, NEMO, MPM (quote need verification, I never used NEMO, MPM) where your variability in profit are less pronounced as they limit themselves to only a few set of pools. The beauty of AM is that you can already turn ANY combination of pools, coins/algos that's available in the cryptoworld today (mineable ones of course) into its Profit Switcher!
Like I suggested before, Switch Away from predefined Online Services and find your own pools for your coins, Stay away from auto exchanging Yiimps too if you are a true profit switcher. The former is flooded by too many users, the latter interferes with real coins' profit statistics. Also, a profit switcher tries to stay away from PPLNS, PPLNT pools (which can be a painful time consuming job to find) especially if the PPLNS, PPLNT window is < pools block time...you will waste time mining there (luckily most Yiimps are PROP but most Equi and Ethash pools aren't), also use @soothaa's coin plugin for starters and switch away from WTM...use WTM only for more established blockchains, the less established ones can get overlooked and not accurate at all, when problem occurs, they can take days to get fixed, if fixed at all. Also, true profit switcher uses "Current" statistics rather than 24 hour avg, this is suggested by Ahashpool, I find it hard to believe in the first place but starting to understand why.
Custom Online Services, that's what I was looking for. Thx a lot