Last night I did some work on my 7/8 Shen. I pulled out a reg set of Flexs and the E was for the Ext, 210mm.. Oops.. way way too long. So I took out a Stark E from another set I had and mixed it with 3 regular Flexs. It works great tension and tone wise. So I can tell you that no matter what Bass I try them on, the Stark E IS the fix for the reg Flex E. Francois, put this info up in the 'Stickys'. People need to know this. The Stark E is about .105" The reg Flex E is about .096". The Reg Ext.E that I just got (my first one) measures about .100. I think this is closer to where the set needs to be. I wont know of course until I use it on a Bass with a C ext with regular Flexs. If this works good on the latched E, I will ask Pirastro to make this gauge in the regular length or maybe with a .102 thickness as all the other Starks are within .003 or less of the reg Gauges. For now though, The Stark E handles all the problems of the Flex weak E syndrome. No more mixing Helicore, Permanent or Orig Flex Es to get the proper tension. When you do this to match tension, you also have the side effect or mis-matched tone. Keep it all Flexs and keep your tone where it belongs, Even! BTW, a special thanks to francois as he was the one to guide me thru all these String things when I started back playing after a 15yr retirement. Thanks francois, it was you that kept me on track and put me in touch with Pirastro to learn all these things about the new styles available now. Also, thanks to you, I have re-discovered the Jaegar Strings and taken a liking to the Forte reds (Stark in Jaegar series) on one of my Basses. I love the soft feel under my fingers and the smooth dark tone my Dodd produces with them. I have an invitation to play the Trout next week in a Chamber quintet. I brought the Gilkes last year for this. I think it's time to try the Dodd and Jaegars and see how the blend in a small setting. In the Orchestra, they are perfect for this Bass. They do require a bit of Bow pressure on the E and some on the A but after all, I am using a Bultitude Bow. It's like a Bazooka hitting a Tank. Or in more peaceful terms, it's like Meat 'n' potatoes or Peas 'n' Carrots.. Take your pick... Ask Don Z or Arnold to comment on this if you like as they have played this Bass and Bow.