As TH had mentioned, we are running some IST1082F through our system in the RX7 material. I really do not suggest using fly rod blanks for spin or cast rods. In years past, that is what builders were using, but manufacturers came out with more desireable choices like the 1081F, 1082F, 1141F, 1143F, 1201F, etc.. Some of these are run on the fly rod mandrels, but with a reinforcement in the butt section for the spin and cast applications.
We also are adding another color offering to the RX7 series. To date, we offered this series in matte clear only. We are in the process of coating this same series in dark transparent green gloss. We will offer both colors.
As soon as the new color is in inventory, we will add "ST" models in the RX8 material. The colors available for this new RX8 series will be the matte clear, as well as transparent black gloss. This could take a month, or even two.
We do monitor most of the boards around the country so that we can get a feel of what builders and users are in need of. If we feel there is enough of a call, then we will produce, and add to the product line.
Hope this answers some of the questions.