I had a Glock 26 for 8 years until 2005 - but I never liked the trigger. And, never shot the gun as well as other guns.
When I "discovered" the P99, and learned that it had a tennifer finish like the Glocks do - I sold the G26 and got a P99. I like it much better.
any size difference between the two are so negligible, that in real world use, it doesn't matter.