Well... Ordered a Parlee Altum yesterday. Geometry-wise, the Altum is taller and shorter than I'm used to,
Nice choice. I've been on an Altum for a couple of seasons now. Liked it very much from the beginning but it has really grown on me. I continue to be very impressed by how light, stiff, and comfortable it is. Incredible climber, great to hammer on, and at the same time I can cruise all day (8 hours plus in the saddle) and never get that "wish I could get off my bike" feeling. Just a great combination of stiff and forgiving in all the right places. Loads of tire clearance also.
As for the geometry, it comes down to getting the right size. I run about 10 cm of drop on an ML with a longish (130 mm) stem slammed on the standard 15 mm headset cap. Exact same position I had on a variety of race bikes with more aggressive geometry.
One word of caution, the integrated seat post wedge clamp requires careful handling. It works well but is a minimalist design. Use carbon paste on the seatpost-seat tube interface, and grease on all the surfaces of the clamp and bolt except the knurled section of the clamp that presses up against the seat post. Then use a torque wrench and tighten the bolt to the max 8 nm. The problem is that the supplied bolt takes a 4 mm allen tool. 8 nm is a lot of torque for a 4 mm. You need a really good fresh allen tool to avoid stripping the bolt. Also because the bolt is close to the seatpost, its hard to angle to tool perfectly when tightening. I switched the stock bolt to a high quality stainless piece that takes a 5 mm tool.
Enjoy the ride and post some pics when she's built.
When we ride disc brakes the whole deal of braking is just like a leaving a fart. It happens and then it's over. Nothing planned and nothing to get nervous for.