No need to choose in a hurry if you're so undecided about those racquets. Both are potentially quite decent rigs and since you own them both, just take your time. You'll get things sorted out soon enough.
The pros are playing for their lunch money pretty much every day, so those folks need a LOT more consistency with their equipment than the rest of us, I think. Even relatively serious amateur players have pronounced excursions between their good days and bad, but that's not about any variations with their gear. We just don't have technique that's as highly developed and repeatable compared with the pro killers.
Now consistency with our equipment can certainly be a good thing, but I also think that trying this or that racquet can be fun. This just in: fun is good, especially for those of us who pretty much play for... yep... fun. I make some money teaching and also coaching high school teams, but I wouldn't do it if it wasn't a lot of fun. Enjoy the racquets for now and you'll probably learn a thing or two about what different gear can offer along the way. If the indecision becomes a chronic distraction though, just leave one at home for maybe a week and then do the same with the other.
I keep two different racquet models in my bag full time and this has helped me dozens of times. One is generally much easier to use for teaching or doubles, but the other is much easier for me to use when pounding at full speed. Sometimes when I'm not feeling exactly right with the one model, I'll immediately get a bump in the right direction when I switch to the other frame - maybe it wakes up my tennis synapses or something. These frames are from the same label, so the grip shapes are almost identical. That - along with similar weights and balances - makes it very easy for me to switch off between them.
No wrong answer here. Don't assume that you should only have one model in your bag, but don't let me talk you into keeping a collection on hand all the time either. Since you're not in the rushed demo cycle of having both of those racquets on hand for only one week, you can use them in different settings and also maybe try some different string layouts in each one. Huge luxury having some extra time on your side!!
