I was hanging for about fifteen minutes at a time at the 30 degrees incline and was comfortable with that.But I've just started the 60 D and it's a bit more difficult so I'm doing ten minutes twice daily until I get more accustomed to it.This table has the mechanism to change the incline built in near the handle bars and unfortunately there is no gradual change...only the degrees I mentioned.The only problem with the steeper angle is that I feel a lot of pressure in my feet.I have thin feet and I really feel it at this angle.I've worn extra socks and they help a little.But I don't know what will happen at 90 degrees.
But I'll do my best to hang in there 'cause everyday I feel a bit better.Plus I feel re-energised after hanging.Funny,I now tell my family I'm going to hang out in the basement(literally!)
Thanks for the encouragement Willow,and happy hanging too.