Best compact step-up module?

I am considering this module for a project but wondered if anyone knew of a better module to suit lower current applications (1A max instead of 4A)? It needs to be fairly small (this is 4.1 x 2.1 x 1.3cm) and still work at lower input voltage (say 3-6V, to provide 7.5-9V).

Pololu seem to have a nice range of modules but I'd prefer something more budget friendly.

I got 2 of these a while back…they work well, used those .36 volt display, voltage and current adjustment
http://www.ebay.com/itm/400504682954?ssPageName=STRK:MEWAX:IT&\_trksid=p3984.m1423.l2649

I just got 2 of these in, voltage AND current control, and has built in displays but are a bit larger

These are much smaller
http://www.ebay.com/itm/DC-DC-Buck-Converter-Step-Down-Module-Adjustable-Power-Supply-For-Aeromodelling-/141251690892?pt=LH_DefaultDomain_0&hash=item20e341c18c
From fasttech for $2.50
http://www.fasttech.com/products/0/10003514/1259403-mini-dc-440v-to-dc-1535v-voltage-step-down-transfo

Here is another one
http://www.fasttech.com/products/1253701

Oh you want a boost…wait one
2A mini (DC-DC 3V to 5-9V 2A Boost DIY Mobile Phone Power Supply Module)
http://www.fasttech.com/products/0/10002934/1219202-dc-dc-3v-to-5-9v-2a-boost-diy-mobile-phone-power-s

1A mini (DC-DC 3V to 5-9V 1A Boost DIY Mobile Phone Power Supply Module)
http://www.fasttech.com/products/1005/10002934/1219203

Thank you! This one looks perfect but it’s step down?
http://www.ebay.com/itm/DC-DC-Buck-Converter-Step-Down-Module-Adjustable-Power-Supply-For-Aeromodelling-/141251690892

I have the last one from FT with red PCB but it puts out 5V max; the trim pot is just fine adjustment, which makes me hesistant to try the other one labelled for up to 9V It’s fine, I was being too gentle with the pot. >.<