Hi Doug,
Between the two guns you have mentioned I personally would have to go with the G29. If you plan on buying several compact 10mm's it doesn't matter as you will wind up with both. However, if only to have one compact 10mm, IMHO, you would be much better served in the long run with the Glock.
I've owned a G20 for a long time. In the thousands of rounds that I have put through that gun malfunctions have been so few and far between I can not honestly remember the last time it happened. Gun condition, ammo selection and GRIP on the gun all have a lot to do with reliable feeding. My Delta Elite competition gun is just excellent as well. I can say the same for the Springfield Armory Omega pistol as well.
I see so often people recommending against the G20, G21, G29 and G30 because the grip was Too Big for them. Well it fits me just fine, in fact it could even be a bit bigger and I would have no problem. In fact the Desert Eagles fit my hand about the best. So does that make any one of us right or wrong when it comes to weather a gun will fit your hand or not?? I think not!!!!!! Only you can answer that Q!
IMHO, I think that one person recommending to another person not to get a gun because, it didn't fit them exactly, is silly!! It is like me telling you that you should only buy size 12 shoes because that is what I have found fit me best. We are all different sizes and the subject of size should be left to the person making the decision.
It is the 21st century now and not buying a gun because it has a polymer frame is as ludicrous as not buying any new car because they no longer have chrome bumpers. I am not saying there is anything wrong with a steel, alloy or polymer frame. Just saying that technology has come a looooong way allowing for such materials to be just as strong and in some cases stronger than the old conventional metal frames.
On a side note; I hear that Para-Ordinance is adding the 10mm to their line-up this year. That will add some more possibilities to What 10mm To Buy!!
Doug, the choice is yours and should be your decision. One you feel happy with. However, IMHO, for a compact 10mm, the G29 is the winner hands down for a defensive gun at the moment.
Good Luck and Happy Decisions!
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Keep It In The 10 Ring,
Michael
"We find comfort among those who agree with us - growth among those who don't."