I think what you are doing is great Jeff, but i still think you are aiming too high. Simplicity is the key, any electronic gizmo's with varistream type control of the reel will cause comebacks and refunds. Your margins will be tight so five month old units returned because of some hamfisted clod's clumsiness will eat into profits.
You don't need the battery, the variable speed, or the cut off.Nor the swivel or the quick release.
Get the retail price down as far as you can. Even then the likes of northern tool will be showing it to china who would have a global market.Once launched you have two years at the outside to make your mark.