I can get Mobil 1 Vtwin here or Purple something or other for motorcycles...which is better? Mobile 1 is cheaper by about $3. What else can I use besides Redline Heavy Shock Proof for the tranny (can't find that yet)? I am over in Germany now and am not sure what I should use or what I can get my grubby hands on. What are people using in the primary?
Seegarz 
Seegarz,
I'm attaching the overall results page from a motorcycle oil test performed in March of '06 (the entire file is too big to post here). Royal Purple is ranked 8th of the oils tested, Amsoil is #1 and Mobil-1 V-Twin is #2. In reality, any of the oils listed will give satisfactory service, but if you're looking for the best readily available product it would be Mobil-1. Amsoil tests a little better, but isn't the easiest stuff to find.
You can use Amsoil or Mobil-1 in the trans just like SYN3 - note that the gear wear test results for all three are excellent. If you are like me and prefer a dedicated gear lube, I can recommend Mobil-1 Synthetic Gear Lube 75W90 or 75W140 if you can't find the Redline Shockproof Heavy. I've also used the Golden Spectro 75W140 in the past, often found at Honda and Yamaha shops.
As for the primary, as long as what you use is compatible with a wet clutch, it really doesn't matter. All you're doing is lubricating the primary chain and cooling the clutch. I've used the separate primary oil H-D used to sell, the Formula+ they sell now, the original SYN3 in my SEEG, and Mobil-1 V-Twin. No noticeable difference with any of the above. In an effort to cut down on the number of different lubes on the shelf, I personally plan to use Mobil-1 V-Twin in the primary as well as the engine from now on, and continue with the Redline in the trans.
Jerry