Not been on here a while, so long in fact that my account doesn't exist anymore. But nevermind, anyway I recently acquired a PAL SNES version of Super Aleste, a series which I've been meaning to try out for years and have noticed something interesting which has made me curious about both this game and others.
Basically, obviously, a PAL console runs at 50hz, and in the case of Super Aleste, with really rather bad borders. They also run notoriously slower, whether at the classic difference of 17.5% or not. However, many games were optimised to run properly in PAL territories, whether speed wise or border wise (many full screen games still seemed slower and vice versa).
Now, I have a modified SNES with a 50/60hz switch and the territorial lock out disabled to enable me to play all region games and to select the clock speed to either speed up PAL games or, should I so desire, slow down NTSC ones. And it's a US model case with PAL insides, so I can fit the larger US carts in as well. Bit of a cannibal, but the best of both worlds; no stepdown required either.

With most PAL games I can enjoy them as NTSC players would have done, full screen and faster, simply by flicking the switch to 60hz. But with games that were optimised, one of two things happens. With Super Mario Kart and Pilotwings for example, it goes crazy and flickery and generally doesn't work properly, for whatever reason. However, with some games, such as Super Tennis, it runs at the optimised NTSC-equivalent speed, plus more as it's designed to run at 50hz, which makes the PAL version the best version to have in that sense.
Super Aleste appears to be the same, but when running in 50hz its borders are so bad that I question whether they would have optimised its speed and then not bothered with the screen size. But it's so staggeringly quick (and I know it's renowned for being a fast shmup but this is REALLY fast, and much faster than it runs in 50hz) that I can only assume I'm experiencing an accelerated game. OR is this how fast Space Megaforce/ the Jap version is already? Has anyone else experienced this and what are your thoughts? It certainly adds to the excitement and challenge, although a tiny bit of occasional slowdown is noticeable now and then. Does anyone know of any other games or systems where this happens, as most systems (especially with shmups on) are either import or display a PAL60 signal anyway.
Cheers
Rob