Questions about Castle repair kits

[kingdomracer]

I also do not understand why no 1515/1.5Y from Castle.
This would be the perfect motor for MT's and Truggy's.
I always thought it would come out soon due to under the Neu chart (on Castle's site) it is recommended for a Truggy.
I'd say this would be a real good seller for those of us who don't want the 1550kv 1.5D from Tekin but want a Y wind in that kv to be able to advance timing.
And neil already said the rest I would say, especially towards bashers who can't fit the 1518 in their applications.
Yea, basically I would love seeing more 1.5Y winds from Castle but especially the 1515/1.5Y