Well, I just tried to install Snow Leopard and that was a disaster -- I didn't even try to upgrade to EFI 1.7.
1) First, I removed my 160GB HDD and installed the 128GB Patriot Torqx. I then loaded up the SL install upgrade DVD that I received from Apple yesterday for purchasing my MacBook Pro. I formatted the drive in the setup program and did a clean install.
Everything seemed to go fine, but the progress bar stayed stuck at 29% for about an hour and wouldn't budge. I restarted the machine, reformatted the drive again, and same problem.
2) I tried yet again and fell asleep during the night while it was working. I woke up this morning to find my system completely dead, fans spinning with no response from the keyboard. So I rebooted and tried a different approach.
3) So I installed Leopard on the SSD (the DVD that came with my MacBook) and it installed fine. I then went to install the Applications DVD and it froze the machine up at 32%.
4) So I got tired of all of this bullcrap and installed my old 160GB HDD and did a regular upgrade to Snow Leopard over my existing data -- no problems.
So I guess there's an incompatibility with the Torqx drive and my MacBook even though I haven't even installed EFI 1.7?
I know the SSD is working fine because I got it from my good buddy Anand who just finished up his exhaustive SSD article.