Linkage rods for T-rex 600 FBL conversion

[Predbasher]

Just converting T-rex 600N to flybarless. I am using the Align head and have the 600/700 linkage rods (HN7100T) but they seem to be too long. I am now wondering if the linkage rods for the 550 would be the correct length as the head is designed for the 550/600 but there are two part nos for the 550 linkage rods: H55047T & H55070T. Very confusing, anyone know which ones I need?

[GravityKills]

I'm using the Outrage head and those links, if that's any help:
R50N575-9 OUTRAGE Linkage Rod Set for Flybarless Head - 50 size Helis

[Predbasher]

Thanks for that. I think I might have worked it out. I think the 600/700 links are for the original main shaft (longer) and the 550 links are for the 600FL (shorter) shaft. Very confusing and I now have two main shafts that I don't need!