Just had a look. MKS pedal caps are slightly too big to press straight in, not by much though. They're threaded unlike the pesky Viscount ones (I had four, lost one already! Busaste told me not to ride with them in!). You could carefully trim the threads off the MKS ones and that might be enough to get a fit. You'd still have the same problem of them popping out unannounced.
In other news, I was out riding the Supa Sport today and because I ran out of time to get where I wanted, I took a detour to my lbs. The owner is a nice guy and a BMC dealer (got the franchise just before Cadel won the TdF last year, nice timing). Decided I'd take him up on his offer of a test ride. So I took out one of these: http://www.bmc-racing.com/us-en/bikes/2012/road/model/racemachine/rm01/rm01_sram_red.html
I knew full well that this might be like heroin. You know, you get your first taste for free. It blows you away so you need more and more. Pretty soon you need it just to feel normal. That sort of thing. It happens!
Took the bike out of the shop. Lifted it onto the road. Thought process went something like this:
"Yep, it's light (<7kg?). OK, bar set up is a bit weird. Brakes work well. So many bloody gears! Pedals pretty easily. Up a 10% hill, not too bad. Gee, it's twitchy at the front when you're up on the pedals. Dead straight forks'll do that I suppose. Down big hill it's smooth and fast (60km/h?) but I'm wary because the only weight keeping this thing on the ground is me, and I don't weigh that much. Glad there's not a crosswind!"
Took it back to lbs. Told the lbs guy it's nice but didn't notice that much of a difference. Said to him I probably would when I get back on the Viscount. Got back on the Supa Sport. It didn't pale in comparison. At all. Rolled just as well. Felt just as lively but less twitchy. Harder up the same 10% hill but I'm moving an extra 3 kg and more to the point am running bigger gears (note to self, are there smaller Dura Ace rings than 42T?). If anything I think I fell in love with it a little more!
Verdict: Viscount holds its own. I reckon it would be the lbs guy who would have the revelation if he got on my