The 17.5 MC5 I run in my LD3 is pretty fantastic. Haven't had it on a motor analyzer yet, timing is 45 degrees on the endbell so I'm guessing it's actually a little lower, geared 30/71 (basically 29/72 for a TLR), runs pretty cool and I'm not wanting more speed plus have plenty of low end to clear most everything I need to. Picked it up used and very glad I did.