My 2 cents: I think my drifts are the same no matter split or euro. I never really bought into pulling the flies with the czech nymph as like I said, I fish for the most part the same. I may be missing out though. Just like split, sometimes jigging the fly or stripping it (Iso's) during the drift make a difference. As you found, you can tuck the flies, just have to manipulate the leader.