I hate to ask, I know lots of questions are asked about Bike fit. I truly tried to find one relating to mine but was unsuccessful. Here is my question, I presently am riding a Klein in a 54CM, it is dangerously close in the inseam area (I have a 29' inseam am 5'9" tall) However, bike is comfortable to ride. I am looking at building a bike from the ground up and have an opportunity to purchase a 52 CM frame. Most of the frame dimension are the same, with a few only that are slightly different. Should I go for it and get the 52? I did read that you should try for the smallest frame possible and use Stem and seat movements to get a good fit. Any insight will be much appreciated. Thanks.