The best way to convert is to first become wealthy enough that dropping $200.00 on a set of shifters doesn't phase you. Unfortunately, I'm still working on that detail, and after 29 years, am still sold on bar-cons (aka bar-end shifters), as offering the best combination of ergonomics, utility, durability and affordability. A good set of bar-cons, a quality derailleur, proper adjustment, the proper gearing for the ride, and a brain that can figure out what you need to do 1 second in advance, and you lose nothing to people with STI.
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In search of what to search for.