Thanks for your feedback.We stopped to produce Tronstol A1.Some functions on A1 received appreciation from customers,such as align the picking position automatically. We still use it on E4 now.We always iterate our products based on feedback from customers. Tronstol E4 is total different than Neoden 4.We will launch a new model on the market at the price similar to Neoden 4. I guarantee that its mounting accuracy and speed will satisfy both prototype and small-scale production customers.Due to our "Library" functions of Material ,footprint&feeder,that can really save our time to install the feeders and edit the files.When your Library's data is enough,you even don't need edit the new file.Just do some easy "click",you can mount a new file directly.