S390-34 Balance with a 33 16L BSI TA stamp

Thanks for reaching out to us! This is very likely enough information, yes, though truth be told I always like to get photos in these circumstances just to be safe. Custom balances cannot be returned for a refund so I don't like to take chances. It's ultimately up to you. 

Otherwise, please give me a little time to look into that 33 16L stamp, or at the very least at what options are available for a sash as heavy as yours. I'll get back to you ASAP once I have more information one way or another.

These photos are perfect, thank you! This definitely makes our job easier and will give us more confidence in our recommendation.

We're still awaiting confirmation that your heavy-duty spring is available. I hope to have that answer for you soon.

Okay, we're good to go on our end. What we can do is make you a S390-34 balance but with a 33DS55 stamp; this is calibrated specifically to hold 55 pounds and is the same spring-within-a-spring setup as you have now (the "DS" literally stands for "Double Spring").

I'll email you a purchase link and price quote right now that will let you add 6 of these to your cart. You can then checkout as normal.

Please let me know if you had any questions or wanted to make any changes.