10mm less reach and drop assuming I stick to the stock 110mm stem. Or can just go with 100mm. Id like to try a 0° stem.
An endurance race bike such as a Jamis Xenith Endura has a reach and stack that's 10mm less, extra 40mm stack, and the bars i believe are about 7mm shorter in drop and reach. These differences would all amount to a riding position that is far more comfortable when riding for longer than 40 minutes at a time.
600mm for the top tube is on the longer side for an XL bike, but not anything absurdly long or aggressive for someone my size. A size 61 is normal for my height.
The bottom bracket on this bike is so low i get pedal strikes with 175mm crank arms. I dont notice any deficit in power unless I am pushing hard on the cranks from a low cadence, which puts extra stress on my knees. Otherwise, not much difference between this and the longer custom cranks I've tried on my other bikes when you're already spinning at your ideal cadence.