I have been a fan of the Pro-link series of electric retracts for years. The one for the + uses a larger motor than the regular X-Calibur and that makes since. I also had an issue with the Pro-links slightly to long for the +. I was advised by DreamWorks that my wheel wells must of been slightly off as another airframe they had the Pro Links fit just fine. It's odd that no other builder has had issues with there "off" wells using the JSM gear and now 3 others have had issues with the Pro Links in the + but that is what I was told. The solution I was advised was to grind the back side of the well off 1/8 inch. This pretty well ruins the sealed concept of the wells we all like very much. I ended up putting in a lathe and taking off 1/8 on the shoulder and shortening 1/8 inch. Fit fine now. If anyone wants an easy way to remove the spring or put back on take aluminum siding and make up shims to go on the spring. 5 shims lengthens the spring very nicely.