[dradernh]

I'm considering getting one of these units but have yet to pull the trigger. I've used an AiM Solo for predictive lap timing during time trials and found it to be a reliable unit.

If you're going to get into data analysis, I'd recommend having the Solo 2 DL wired into the CAN bus rather than plugging it into the OBD II port. That connection provides you with more data channels and will enable you to do a more complete job when analyzing your on-track performance. The following document lists the data channels provided by each connection, with section 4.1 listing the OBD II channels and section 4.2 the CAN bus channels: http://aimsports.com/download/ecu/st...21_101_eng.pdf. AiM also has a roving trainer who provides classroom training seminars. I've never been to one but have heard from other drivers that they're good. More here: https://www.aim-sportline.com/en/doc...vents-2019.htm.

Ideally, you'd have a device that records these channels: vehicle speed, RPM, throttle (as a percentage), brake pedal (in psi of pressure), steering (in degrees of angle), and lat/long g-forces. I believe the Solo 2 DL will do all of those with the exception of braking in psi. It may do that, but at present I'm assuming it logs braking as on/off. That's still useful, but it won't show the degree to which trail-braking/steering is being employed, forcing the analyst to use g-forces to try teasing that out.

Before shopping on price, I'd recommend looking for a vendor who will willingly provide the support you'll need if you think you'll get serious about analyzing your data. The analysis software that AiM provides isn't always intuitive, and having a resource that can quickly answer your occasional question will more than pay for itself in time saved and insight gained. AiM also provides support in the form of youtube videos: https://www.youtube.com/user/aimdata/videos.

The vendors I've bought from and/or interacted with and can recommend are:

Peter Krause: http://www.peterkrause.net/

Matt Romanowski: https://www.trailbrake.us/

Richard at M-World: http://www.m-world.us/.

Each knows the product well and is deep into analyzing data for driver improvement.

There's also a book out that I've found very useful for learning the basics of data analysis. The title is Making Sense of Squiggly Lines, and it provides an excellent grounding in how to use data to improve your driving. It's written in plain English and has plenty of illustrations that help get the author's points across. It's only ~140 pages, so it's a fairly quick read. I'm presently re-reading it in case I get the Solo 2 DL. More here: http://squigglylines.com/making-sens...quiggly-lines/.