same inseam here. lowering the bike does not adversely affect handling. in fact, it may improve it. you may scrape ground easier, but if that's the kind of riding you plan on you probably bought the wrong bike.
i ride a vee. removed the rubber bumpers under the seat, had seat customized a tad lower. not sure, but i've been told the bike was lowered by the PO. still, i barely can touch ground with both feet. simple resolution is to shift my butt over to one side when stopped.
'08 DR650, '07 DL1000
"And anyways, if they don't have motorcycles in heaven, I'd rather go to hell. I'm pretty sure they will have loads of them there." (deelip, 2016)