First off, one question: when you are not riding your Spyder and it is simply sitting in its normal parking spot is it connected to a battery maintainer, e.g., a Battery Tender Junior? If not, why not?
Now as part of your normal routine on a day on which you are about to ride try this: (1) disconnect the Spyder from the battery maintainer, (2) start the Spyder, (3) don all the individual elements of your ATGATT ensemble, (4) connect your cell phone to its power source, wherever it is, (5) turn on your helmet communication device, (6) push your Spyder out of the garage or car port, being certain to set the parking brake before you mount your roadster, (7) release the parking brake, (8) shift into 1st gear or Reverse, (9) ease out onto the street, (10) roll on the throttle and proceed on your ride. The time you consumed in steps (1) through (9) should have allowed the engine temperature to rise to the point where there is no herky, jerky stuttering as you roll off on your wind therapy adventure. FWIW, I've been doing that for almost 11 years straight and have no problems departing the unheated garage at the hacienda down to 32 degrees. There is no clutch slippage either because the HCM locks up the clutch as soon as I crack the throttle.