Tony is correct about the 80 profile handling better then the 90 profile. I run Avon Ultra Storm2's. These modern radial tires grip very well and currently get better mileage over older versions with these new dual compound (harder in the middle) type tires. PR3 is supposed to be another good choice of tire and there are others. There is no such thing as a high rubber content tire which grips well in wet and dry, corners well and also lasts for many miles. You cannot have both, however manufactures are trying to do just that with dual compound tires. The higher the plastic content in a tire results less grip, a lower the speed rating (they melt) and higher mileage. Conversely the higher the rubber content, the better the grip-well you know what I mean.
The issue kzz1king is our stock 16 inch rear wheel. You are limited in what is now available. PR3 and Storm2 are not available for the rear 16 inch rim. This is why many of us choose the Mean Streak rear rim upgrade (or have the real wheel cut and welded up to a 17 inch rim).
You stock rear rim guys can still buy the Avon Azzaro's . The mileage is not that good but it grips well in wet and dry and is a safe tire. When I say safe, I am referring to my lack of motorcycle riding expertize so I have to make up for that with superior braking and handling upgrades to compensate for my short comings. The end result for is more confidence and a greater fun factor.
Others are quite happy with tires that have much less grip because they do not use the bike anywhere near its capabilities. Just beware that the day will come that you may get rained on , or may have to take that unexpected tight corner or have to stop fast and that is where a slick slippery high mileage tire like the 880 will really let you down. To me it is not worth the savings. The lack of confidence and complete loss of the fun factor when riding is just not worth it. When I had that tire on the back it was darn right squirrely in the corners and I could break it loose with heavy throttle and that was on perfectly clean dry surfaces. On wet I had zero traction.. I gave the tire away asap with only a few hundred miles on it. It all breaks down to how you drive and the risks you want to take. There have been other posters here that crashed their bike because they could not make it around a corner going slow in wet weather. Do not be one of those please. Ride safe and put good tires on your bike, do not install the highest mileage tire or the cheapest tire you can find.
kzz1king I do not have a perfect answer for you. You have some decisions to make. Just do not use those 880's They really do suck.
Thanks for listening. This is my opinion. Many more shall follow.