(not just Yami owners)
Ok, I know it's probably been beaten to death, sorry. Yes I did a search both here and on R1-Forums first. BUT, I still wanted to hit y'all up before I pulled the trigger on a Shorai Power (Lithium) for $145 through MotoMummy.
Seems like those get the best all-around reviews for weight, amps, & longevity (if you use a trickle-charger, use a non-desulfation type like BatteryTender). Other good ones were the BikeMasters TrueGel and Ballistic Performance.
Your real-world experiences? I mean besides the stock heavy Yuasa YTZ-10S...