well, if you use scotch tape to do so it's pretty easy. im only on my 2nd piece on my home made foamie. the props bend and didnt snap on landing. after picking the plane up the prop just bounced back to it's original shape.
TAPE? Are you outta your fecking mind? TAPE, these things are no stronger than the plastic trees they use to hold model airplane kits together before you glue them! This material has no flexibility for any kind of even LIGHT impact, but if you people are SO damn hard-up to save a dollar thinking you're getting a deal and get no service out of a product.... by all means, keep at it! Pretty stupid to me.
David, ever think by "cracking" your props with clippers, you are damaging the integrity of the material used? These props are plenty strong for mild to wild flight as I use them in my HK Parkjet and several foam scratchbuilds. Maybe consider your style of flying before condemning something. As far as being hard up, I dont mind taking the time to balance any prop, as far as I know, I've had to balance several genuine "name brand" props as well. I guess my props last longer as I know how to land my planes.
Dago, I'll gladly take them, but you would probably charge twice as much as HK. LOL.
These are very flimsy blades so far out of balance. I cut at least 10mm off one blade to balance out. Too much! I then used a fair amount of tape on another. I would recommend the GWS props at this size.
These props are flexible but work nice. The price is unreal for five props. I use this on a 2200kv motor in a pusher jet and it pulls around 28 watts. I will order more. Cheap to keep in the rc box to loan out to other flyers, if they would just give them back.