I apologize for not responding to you yet.
I plan to use my 340 more than my 540 this season. It just clicks with me more. Sounds crazy, but it is more fun to use for me.

I also plan to use my classic White's machines more. I just purchased an absolute pristine Black max 5.3 coil. This coil does not appear to have been used. That will be 5.3 coil number 2. I can now keep one on 2 of my favorite White's machines.

I have also had loads of fun with my Eurotek Pro with the 4" coil mounted. That machine will get some hours. Along with my BH Tracker IV machines with the 4" coils.

I plan on having fun with my favorite machines. That is what it is all about.