You should be fine I went to 170 the first time I use gelatin not knowing how good my microwave was. I poured it in the keg that was in the keezer and it cleared the beer just fine. After that I have been more careful shooting for 150 to 155.
Sorry my sister was having surgery. What I have found out is 1 pound of fruit per gallon. I have used the vintners harvest with good result also. Recently did a American Wheat and split the batch. Bottled half and added two pounds of peaches to the other after..(I just wanted to see if I could...
I have done three pumpkin beer. This first one I added to much pumpkin a very large can I got from us foods. It was way to sweet. But 2nd I did with the two 29 oz can. It was good also with a lot of sweetness from the pumpkins. But I couldn't taster the pie spice. The 3rd was awesome nice...
I got the can pumpkin and cooked it in the oven for 1 hour at 350 degrees. I then place in my mash tun and mashed it.
Like Glick said don't forget the rice hulls. Rice Hulls helps you from get a stuck sparge.
You also have to drain this slow due to you will get a stuck sparge if you don.t
So...