Can you take your mtb with you to the retul system shop?
Can you give us some idea about your size? Just basics like your weight, height, cycling inseam, torso size in relation to your leg length, if you have average abdominal strength if like a lower racing position or a more upright position and if you have any chronic injuries?
Talking about bike fit is pretty fun. Working it out in the real world (instead of an internet forum) is even more fun. For your titanium road bike do you have any sense on if you want a traditional horizontal top tube road frame or if you want sloping top tube geometry?