The 5000c fantoms will fit?I tried the protec 35 c and would not fit in my jrxs-r,i don't have the layshaft gonna order one this week!I was talking with a few racers that are front runners and the said they picked up .5 to 1sec depending on who you talked to and in onroad racing sometimes a .5 sec is alot when you race with a group who don't make many mistakes!