i can see that with all the holes, you could put a bigger , bottomless pot around them to stop the water poring out?
Yeah, same as any of the fabric pots, there are a lot of brands out there now. Tried 3 outdoor this year and wish I had gone with bigger like 15-20 gal pots, the ladies love these things outdoor too.
damn, yeah, I only use BIG fattie smartpots outside, and make sure you get the light colored ones, and fill the soil up to the brim, it always settles down to like 80% of the container. I like a good 25 gallon or so for outside, depends on the strain, but my sativas like the room they get.
Never heard a plant complain about being in too big a pot - lol I'll probably try 20 gal next year, if we had a longer season here I'd go bigger, maybe even 30 gal but my season is somewhere between beginning to mid-June and the first frost hits by the 1st week of October. Long enough to grow out a decent plant but not long enough or enough sun here to grow monsters
If Florida or Mississippi ever go legal my brother and sister live down there, I'll go down and get them setup in spring and grow some real plants 
you know, I actually kinda disagree, a pot too big can retain too much water, and the roots may rot, also sometimes too much soil can get too much soil tension, and kinda "pack" in, I like to frequently transplant to keep the root ball more dense, when transplanted from a smaller pot to a really large pot the roots go to the bottom and the sides, but don't FILL the areas in between as well, which is why I like to transplant often when growing large outdoor plants, you'll see a large difference when you harvest and look at the rootball. a plant that's transplanted (with myco) will always have a denser rootball than one that was transplanted only once into a large pot.Never heard a plant complain about being in too big a pot - lol I'll probably try 20 gal next year, if we had a longer season here I'd go bigger, maybe even 30 gal but my season is somewhere between beginning to mid-June and the first frost hits by the 1st week of October. Long enough to grow out a decent plant but not long enough or enough sun here to grow monsters
Yeah, I'd agree on this if using strictly soil and plastic pots/bags that can't breathe. However, in the fabric pots and amended soil mix, I don't see any problems with water retention or packing. For outdoor I use about 70% triple-mix and balance Pro-Mix so as not to end up with the soil packing too tightly, seems to work better and they dry out as air passes through them with the fabric pots. I like this mixed soil + pro-mix combo switched to it last year indoor at 50/50, have eliminated bugs altogether, the air going through the fabric pots + supplemental feeding (no heavy nutes, never beyond 600 ppm), no packing of the soil etc. all seem to have helped with plant health and yields. I've used the indoor starts to get them going in the past for guerrilla grows, but I can only grow 2-3 plants outdoor and need to keep them small/short for stealth, we're not legal here
There's a far-out chance that things will change towards end of next year with elections coming but I'm not holding my breath so I stay under the radar. Probably a better chance of one of my siblings being legal to grow than here in Canada, sucks. But, a few plants under the radar is still better than paying $250 - 300/oz 
