Heard back from heal-tech ... they mention that they have seen the cruise control issue but also implied that it wasn't wide-spread. They also noted that they have a full 100% money back gaurantee:
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Thank you for your email and for the kind words!
We did hear once or twice that the cruise control quit working with the SH
installed. We did not have the chance to investigate this and have not heard
back from the customer.
If you decide to give it a try, you need to know there's a money back
guarantee on our products.Please order from the distributor:
http://www.calsportbike.com/shKind Regards,
/Norbert
healtech-electronics.com
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Install on my previous bikes was plug and play so it isn't a major deal to try it ... at ~$115 (and if it works of course) it's a cheaper option than a tuner if all you need is speedo correction.
Hope this helps ...