The under-the-tank heat blanket is a really good idea, inexpensive and easy to install. Yamaha must have realized this as they upgraded the heat insulation under the tank for the Gen II models.
I got a roll of aluminum bubble insulation at Home Depot for under ten bux, cut it out appropriately, and slid it under the tank. Before I did this, on hot days in the American Southwest, fuel in the tank would boil, expelling cool, fresh gasoline up and out of the filler hole when I refilled the tank at fuel stops. Now, even a duffer like me has to realize that just can't be good. After the heat blanket installation, the little gasoline shower surprise happens no more. Tank heat is now more an effect of solar heating than of radiant engine heat.
The CromeIt shield is another very good fix, well worth the short time it took to make it and install. I used aluminum roof flashing, costing me less than a dollar and about an hour of work.
Nowadays, after those two procedures, the Gen I heat is really nothing extraordinary, and probably somewhat less that what one would get from many a similar motorcycle engine. There's heat, but what do you expect when you have a 1300 cc engine between your legs? My 750 cc K-Beemer also put out a lot of heat on hot days, but it destroyed itself before I got a chance to fix it. Last week, on a ride, a fellow rider reported that his ST 1300 was a real shin burner. He ought to install a heat blanket under the tank. So should you. WBill