Hmm the problem is I don't know if I have the 34T or 39T installed But here is what happened since the install. The gearing is very off. For example I normally run in the small ring towards the high end of the gears but now I find the power very low in the low ring and have to switch up to the high ring more to maintain the same speed that I had in the small ring before.

It feels like the overall power band of the gears is off and I have to switch into higher gears to maintain the same power and speed I did with lower gears before.

Could it be the "too big" cage causing this? Or something else? I really don't know but any help would be appreciated.