@bdp24
One more thing about the Trans-Fi is that it allows the anal-retentive to really get really into nervosa. The flat, parallel sides of the wand allow one to align the cartridge very close to perfect tangentiality; I recently achieved 3 minutes of arc, based on setting parallelism to better than 0.001 inches.
My cartridges really seem to blossom with this level of precision. Yours may too.
One more thing about the Trans-Fi is that it allows the anal-retentive to really get really into nervosa. The flat, parallel sides of the wand allow one to align the cartridge very close to perfect tangentiality; I recently achieved 3 minutes of arc, based on setting parallelism to better than 0.001 inches.
My cartridges really seem to blossom with this level of precision. Yours may too.