Speaking of VAX memory... MSV11PK->MSV11PL?

Hi, All, Today's threads about maxing out VAX4000s reminds me that I've been meaning to ask if anyone has fully stuffed a 512KB MSV11-PK and turned it into a 1MB MSV11-PL? I have the requisite handbooks and know how to strap the cards and such, but having in the past upgraded DEC memory cards, I remember the "joy" of sucking out hundreds of holes and looking for cold joints when the card didn't work the first time I tried it (eventually, I did get it to work). I just haven't done it with a card that's more than a dumb block of RAM (the MSV11-P series has a CSR for querying parity status, among other things). Abstractly, I expect it's a matter of cleaning the solder out of the pins, installing a lot of 4164s (the card supports 4116s or 4164s), then changing a strap or two for the extra fields. I'm just wondering if anyone has done this and found and surprises. I'd love to just have a pile of 4MB Qbus memory lying around so I didn't have to fuss with things (for those that don't know DEC equipment, 4MB fills the memory space on a 22-bit Qbus (no PMI) machine), but I think I have exactly one card that large and it lives in a MicroVAX I. Thanks for any tips or warnings, -ethan P.S. - someday, I may try the same with an M8417 to turn an MSC8AA (16K) into an MSC8DJ (128K) by removing the 4K DRAMs and fully-populating the card with 4116s. The sheer number of solder joints to get right has held me back on that one.