Following up on my experience attaching the Wise 2086 to a Gamma X-6FC which followed up on happyandbob's description for a Gamma X-6, after using the new setup for about a month I decided to add a custom modification for the following reasons:
1. The diabolo when stringing through grommets at the head and throat is close to the racket frame which makes looping the string through the diabolo a little cumbersome.
2. For very large rackets, one loses 360 rotation.
After making a custom mod the two issues are alleviated:
The next picture shows
that the tensioning head is close to linearly aligned with the racket. Also, because the mod raises the tensioner by 1/4" there may be less grommet friction.
The following describes how I implemented the custom mod which should apply to Gamma X-stringer bases for X-2, X-6, X-6FC which have the same dimension and drop weight mounting system. The next picture shows
how a rectangular aluminum base is added to provide larger gap between diabolo and racket frame, make the tensioning head close to linearly aligned, and secure the 2086 drop weight adaptor (sold at Tennis Warehouse shown) to the custom aluminum adapter that is secure to the base/frame of the X-6FC stringer.
The size of the aluminum adapter is approximately 9 1/8 x 3 1/4 inches and 1/4 inches thick. It is 6061-T6 stock. Although the mod falls under machining, woodworking accuracy standards are sufficient since M6 screws connect to threaded sliders that fit loosely in the base of the X-6FC stringer. Staying within 1 mm accuracy should suffice to get a good fit. M6 allen head screws of different lengths, washers, and nuts shows in post #248 are needed for adapters to each other and the stringer's base. The next picture shows
the holes drilled in the rectangular aluminum adapter and 4 sliders that come with the X-6FC. The top two shiny ones with 3 holes are used in my Gamma X-6FC to attach the drop weight assembly to the base. The two bottom sliders are used by Gamma to attach the feet of the stringer to the base. Since there are 4 feet, there are 4 sliders with 2 holes of which only 2 are needed. How to reattach the 2 feet whose sliders are are repurposing? Use the square nuts shown in post #248, three per foot. Gamma uses a sliders with two holes to attach a feet by using a set screw to position the sliders at a corner and using the second hole to attach a foot. Using 3 square nuts that are position adjacent to each other, use set screws in the two outer nuts to position the 3-nut group at a corner. Attach a foot by screwing it to the middle nut.
My X-stringer did not have slides with 3 holes. All were of the 2 hole variety. I don't know if X-6 comes with the 3 holes or 2. If your stringer has sliders with 2 holes only, just drill the holes where the two holes are and it should be fine. I prefer the spacing that the 3 hole version allows but it's not essential. The red arrows indicate which slider holes go with which holes drilled in the aluminum adapter. They go into the two tracks of the stringer base. The hole marked with white letter 'A' in the aluminum adapter is special in that the M6 screw goes through both adapters before attaching to the base of X-6FC. The 5 holes above 'A' are used to attach the custom adapter to the sliders of the X-6FC's base. The holes below and left of 'A' are used to attach the black drop weight adapter to the custom adapter using M6 screws, washers, and nuts. Note that two of the slider holes are not used.
The mod described above requires cutting and drilling aluminum stock. Using power tools is dangerous and can maim or worse. If you are an expert machinist please remember that complacency is the expert's worst enemy. If you are not an expert in using machining tools, delegate the matter to experts. You can measure the hole locations by using a ruler or caliper. Draw it on a piece of paper and give it to an expert to machine. Material cost for aluminum stock and screws, washers, nuts should be less than $30. Labor cost, if you have an expert friend, a beverage or two. Otherwise, get quotes from local machining shops. Tell your tolerance level which does not require CNC machining. They may not do it cause it's too simple. Or do it for a nominal fee.