Thanks jeff72,
Your answer is pretty much what I thought it would be. I'm scared of that spring unit to no end as a neighbor of mine was hurt trying to adjust one himself. Had mine adjusted by a pro, who made it look easy. Just was wondering if anyone out there had tried what I was thinking and if it worked or not. I figured if your opener had a battery back-up system that worked if you lost power that the spring MIGHT NOT be required.
My plan was to buy a new garage door unit to replace the old Raynor door, as it is 20 years old and does not meet current Florida wind code, but, they want $1250.00 to replace my old door and hardware with a very simple, like I have now, door. Thanks to your input I'll buy the door I want and do all the installation myself, except for the spring adjust part. They will still charge me $60.00 just for the service call. Labor costs in this area is horrible, up to 60-70% of the total job cost. By the way, I'd have to rate that Sears Craftsman door opener a 5 star. Easy to install and very, very quiet. With the dual lights, up to 100 watts each, the garage is as bright as day when the door opens at night plus they come on automatically whenever you enter the garage.
Thanks again for your answer.
Tony Franceschi of Spring Hill, FL