Funny we should be discussing this topic. I was strolling through my LHS shop recently and came across Monogram's 1990 release of a 1/48 F-106, one of my favorite aircraft. It has very fine raised panel lines and rivets-- so fine they are almost beautiful in appearance. And much better looking in my opinion than the sunken rivets and panel lines on Trumpeter's newer kit. I bought the kit immediately (couldn't go wrong for just $10). My thought is with a coat of primer and then some ADC gloss gray, the panel lines and rivets will be at about the same level as the top surface of the paint, which can then be sanded lightly, allowing those lines and rivets to just barely peek through the paint-- just like the real thing. With engraved panel lines and rivets, they would be sunken into the surface of the paint. Most real aircraft panels abutt each other without interruption by a sunken panel line. I admit, it's easier to get an immediate result with engraved lines, but I'm starting to think raised lines and rivets may not be all bad either with some TLC. Another thing-- Tims photo of Airfix's ME109 is an illustration of raised rivets "gone wild", but on many WWII aircraft, raised rivets were found all over the airframes, but are noticeably missing in many model kits. That's a bit aggravating for me sometimes. I have Trumpeter's excellent TBF in 1/32 scale-- the rivet patterns are nicely done, but they should definitely be raised, since they would be very noticble in 1/32 scale. Ideally, a combination of raised and engraved detail would look the best, but in the modeling world, we seem to get "either or".