I thought I'd have a play with a few flashes (two old Metz 45's and a Starblitz 3600 triggered by Morris photocell slaves) and take a shot of my new camera (might as well use it as the subject). My problem is by the time I 'white out' the sheets of acrylic (offcuts) with the necessary amount of overexposure, the subject is nearly always slightly overexposed as well (applies to any subject). The only way I can even get close to ideal is by very careful flash placement, both distance and direction and power settings. Maybe I'm not building my softlight product table correctly, (it's just a taped together box with no lid, and a side missing as well), I probably should have a long curved peice of acrylic from the base curving up to form the rear wall so I don't have a right angle seam visible in the backgound that I have to try and white out.
David your product type table has a curved product support base I think, does that make life easier? if that's the right way to do it I'll have to revisit the acrylic sheet supplier and get anothre longer piece.
I have a photo to show what I mean about the exposure.