What is better for guest SSD, fixed or dynamic size image?

[Lesjar]

I'm going to place a Windows XP VDI image on a SSD, this OS doesn't use TRIM. So is the fixed size better in this case? Will it minimize writes to the disk also?

[noteirak]

AFAIK, fixed or dynamic size does not make any difference in terms of write to the disk during usage.

[Lesjar]

Thanks!