tann

Hello, I casually commute in a mountain bike and thinking about getting a road bike. I know that I should always try each bike regardless of size (unless its obviously too big or small) As a general rule, you're suppose to use your height and inseam to get a ball park for the size bike but my question is do I use my actual height or my height with my shoes on? I use the same running shoes with custom insoles everywhere I bike and it gives me an inch and a bit higher So should I use that height instead? or that doesnt even matter since an Inch wont help? Thanks a lot