Apologies for necroing this old thread, and apologies for the length of this post… I didn’t see the point of starting up a new one. And things have changed in the gel arena since the last post anyhoo.
Pretty much for the first time, I’m having issues with inconsistent gels that have raised a few questions in my aging cranium.
keep in mind that I don’t skirmish or gameplay, so gels tend to last me a long time.
All the hard matt gels I seem to grow these days are all over the place like a madman’s shit for size… I know it’s a common problem, and I’m not looking for the holy grail of answers, just a bit of clarification.
On controlled grows… gels are made to grow to a pre-determined size which is usually reached after about 4 hours of soaking. I get that reducing the time immersed will affect the size… naturally. But yanking them out early means they haven’t absorbed all the water they’re capable of absorbing. Even well drained, if they’re stored in a container with any amount of water at all surely some will continue to absorb and grow larger? So is controlled growing really only suitable for same day use? 
On sorting… are there ANY size sorting devices available that work reasonably efficiently? The engineer in me cringes when I think about sitting down to a bowl of 10,000 Ultra Elites with a Vernier caliper and trying to accurately measure a slippery flexible sphere of snot.
On storage… controlled grow or not, all the gels I store seem to be ridiculously inconsistent in size after a week or two. Some look more like 8.5mm diameter than 7.3 -7.5. After about 4 weeks they seem to start degrading and on my higher FPS blasters I get more explosions out of the barrel. I used to be able to store gels for at least a month and they’d be okay.
On regrowing… occasionally I do attempt to resoak older batches, but they never seem to return to original growth size, usually a lot larger, and seem more prone to breaking up. So much so that I don’t bother regrowing anymore, just bin the lot.
For the record, I grow my gels in an open container of tap water for four hours, then strain well, pat dry and store in an airtight bottle in the refrigerator. Lately I’ve been considering growing them in purified de-ionised water to see if that makes any difference, I used to do that every grow but I got tired of paying for water from Supercheap or Autobarn.
I mostly use Ultra Elites, iHobby hard gels, Riots… ironically the most consistent gels I grow are WI reds, but they’re not up to the FPS most of my blasters produce and damn near impossible to see in flight, worse in low light conditions.
I know we’re only talking about $7 bucks per 10K gels here, but I’d welcome any suggestions for a better more consistent hard gel suitable for 300+FPS use.