Digital altimeters

Isn't the altitude display in the TT22 corrected to 29.92" Hg?

During wave flights and high thermal days, I use local field altimeter
setting on the baro altimeter.Â* At 17,900' MSL indicated I generally see
about 17.7 on the Trig.Â* I do NOT push up to 17.9 on the Trig given my
pressure altimeter will read around 18,200'.Â* I just don't need that
extra altitude at the risk of a call/letter/visit from FSDO.

On 6/3/2018 10:01 AM, JS wrote:
On Sunday, June 3, 2018 at 6:13:25 AM UTC-7, wrote:
On Saturday, June 2, 2018 at 2:13:38 PM UTC-7, wrote:
Tried of the 57mm Winter altimeter being too inaccurate even after being re-calibrated. Being EXPERIMENTAL, going to look into digital.

Going to look at MGL Vega ASV-1 first as it displays altitude and airspeed. http://www.mglavionics.com/html/vega_color_singles.html

Anyone had experience with this specific make/model?
Its hard to find specific guidance for instruments in experimental gliders within the maze of FAA regulations, but as a practical matter, I found my Winter compact altimeter calibration was inadequate for safely flying close to restricted airspace, even after factory recalibration, so I took it out and use my CAI and LX altimeters, which have excellent calibration.
I use a calibrated Winter 57mm altimeter and regularly fly near or in Restricted airspace. The ALT display in the TT22 is a more important thing there.
Jim

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Dan, 5J