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Go for the conversion, definitely. The adapters with glass to correct focus will leave you with a virtually unusably blurry image at fast apertures, which is what this lens is all about.   Great lens, deserves the conversion.   There's also a guy in the UK who does a conversion where you send the FD lens to him. Professional guy and highly recommended.   http://www.ebay.co.uk/usr/eddiehouston1545   Try dropping Eddie an email :)   The EdMika mounts look good too.

The SLR Magic Anamorphot works well with the SLR Magic 35mm T1.4 CINE II but it does not necessary work well with any taking lens. It is more likely for the SLR Magic Anamorphot to work with prime lenses with a front element diameter smaller than 50mm (not filter thread diameter). If the front element is larger than 50mm you either need to stop down or it may not even work at all. The lens is also more likely to be compatible with prime lenses. So far this is what we know that works from user feedback: Blackmagic Pocket MFT camera only SLR Magic 17mm f/1.6 @2.8 Sigma 18-35mm f/1.8 @2.8 MFT cameras Panasonic 20mm f/1.7 @1.7 Voightlander 25mm f/0.95 @0.95 SLR Magic 35mm T1.4 CINE II @2.8 Canon EF STM f/2.8 @2.8 Contax 45mm f/2.8 @2.8 Zeiss 50mm f/1.4 @2.8 Contax 60mm f/2.8 @4.0 Leica Summicron-R 90mm f/2 @5.6 Contax 100mm f/2 @5.6 Prakticar 135mm f/2.8 @5.6

You can use an FD to EOS adapter which has an additional layer of glass inside. This will soften your image (especially when shooting wide-open), but you'll be able to focus to infinity. Another option is to switch to mirrorless cameras ... I just made the switch from Canon to Panasonic (and also Sony). FD glass works splendidly on mirrorless cameras with a simple adapter without glass. I shot this video with FD glass and a Panasonic G6 : Coely - My Tomorrow - YouTube

As far as I know these EdMika mounts are reversible conversions. You don't ruin your lens, you can always install the original back part of the lens, the FD mount. There are tutorial videos on youtube about it. You just have to unscrew 3-4 screws, remove the FD mount, install the EF mount, reinsert the screws.

I don't want to intrude your post but anyway... ;) Check out this "ULF speed booster", well its an dof adapter but heh (14"x14")

I think that must be one of the most clueless articles I've ever read.

If you are looking for the best achromat for your Sankor, then this is it in Series 7 thread (54mm) http://www.ebay.co.uk/itm/261350865781?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 at 0.7 diopter it will allow close focus from 0.75 to 1.5m - a perfect supplement.