Interior Painting Tips Video

Tim, my wife and I just spent two days painting our family room/dinette/kitchen ceiling. We used Valspar's premium ceiling paint and Wooster (3/8" nap) roller covers costing around $4.50 ea. We also used Floetrol as an extender (8 oz./gal). The results are not what we expected/wanted. There's alot of 'patchiness' to the finish. It seems particular to where we overlapped in order to ensure good coverage so we wouldn't have the old finish showing. Not sure where we went wrong. The finish that was on the ceiling (builder applied) was virtually flawless (sprayed?). We had to repaint because of a leak and subsequent replacement of a section of the ceiling. Original finish was 7 yrs old and we couldn't get a good match on the sheen of the paint. Suggestions? Thanks.

Chuck Cochrane