Rom M69s and all that good stuff

I never thought to look for a forum on RFC for Romanian M69 trainers, but am glad I found it. Never has so much debate and info raged on as the question of how to scope these beautiful lil' 22s.
I've used everything I found online from the cheapie BSA airgun scope WalMart sells for $15 (which btw held great zero for about 3 weeks and gave me 3 shots touching at 100 yards) to KwikSite adapters, you name it. One thing I never have tried is drilling and tapping as I have that old anti Bubba thought process drilled into my head.
Noticing diferences though in that so called dovetail base these rifles have has led me to be open to lots of options. For example the old imports without the big CIA electro dot stamp seem to have a wider base, and the newer ones have a much narrower, almost shaved base. My first M69 had a base wide enough that it allowed me to fit some standard 22 rings. Newer stamped models, not newer production dates, but newer Century stamped imports only seem to work with Kwik Site adapters or a few airgun rings.
This all wierd because the first one I bought that has the small import stamp and wide base is listed 1984. On the 2 others I bought from SOG that have the large Century import mark, one of them is earlier and one is later than the 1984 model and they have a narrow base. Almost as if Century has altered the bases of these because it looks like extra material was removed and then the whole reciever reblued.
Either way i've got 2 that are scoped, and one that i'm refinishing and plan to use open sights on. These are great rifles and the knowledge on tricks and tips with them is hard to find. Everything i've done so far with the exception of bolt take down is from being self taught including finding ways to remove that stuborn stock finish.
Heres a pic of mine with the BSA airgun scope along with target.